Leo XIII’s Rerum Novarum defended human dignity against the real economic powers of its day—especially the vulnerability of workers to exploitation, injustice, and a kind of “yoke” imposed by unchecked competition and concentrated wealth. Pope Leo XIV’s Magnifica Humanitas does not merely “update” that defense for the AI era; it extends Rerum Novarum’s protection by applying its anthropological and moral core to new ways persons can be harmed when power is exercised through algorithms, digitized decision-making, and technocratic ideals of efficiency. 1 2

Continuity in the Church’s social principle: dignity is the measure, not efficiency

Rerum Novarum treats the “question of the condition of the working classes” as urgent because many workers were “surrendered, isolated and helpless” to employers’ “greed of unchecked competition,” with social evils intensified by practices likened to injustice and even “a yoke little better than that of slavery itself.” 1

This matters for your question because Leo XIII’s argument is not only about wages or property; it is about justice toward persons. The worker is not an instrument to be used and discarded. In fact, when a man engages in remunerative labor, Rerum Novarum says he works to obtain property and to have a “right full and real” not only to remuneration but to its “disposal,” since ownership is connected to human reason, future-planning, and self-direction. 1

Magnifica Humanitas keeps that same moral architecture but translates it into the AI context. It warns that a technocratic paradigm can normalize an “anti-human vision” where “the fullness of life is equated with having more, reducing weakness, eliminating uncertainty and exerting total control,” and where the person is treated as something “to be optimized rather than as persons called to relationship and communion.” 3

So, the extension works by shifting the mechanism of risk (factories and labor markets → digital systems and automated governance) while preserving the criterion: human dignity is the standard by which power must be judged. 3 4

Sources for this section: Rerum Novarum (especially its diagnosis of workers’ vulnerability and rights in labor) 1; Magnifica Humanitas (technocratic reduction of the person; criteria from Social Doctrine) 3 4

From exploitation at the point of production to exploitation across the digital supply chain

A key way Magnifica Humanitas extends Rerum Novarum is by enlarging the “field of exploitation.”

Rerum Novarum describes structural harm: the hiring of labor and conduct of trade are concentrated in “the hands of comparatively few,” allowing a small number of very rich men to impose on the masses a “yoke” akin to slavery. 1

Magnifica Humanitas identifies analogous concentration and hiddenness, but now the “system” includes not only employers and investors—also the entire digital infrastructure. It insists that “every seemingly immediate and flawless response is the result of a long chain of mediation,” involving “vast networks” of resources and “people.” 5

Crucially, it names forms of labor that resemble the moral scandal Rerum Novarum opposed: it points to the “silent work” of data labeling, model training, and content moderation—often under “demanding conditions for minimal wages,” frequently involving young people, “predominantly women.” 5

It also highlights extraction: the harsher work of obtaining the materials for devices and microprocessors, including children and adolescents in “dangerous conditions” extracting rare earth elements, with bodies “scarred” and worn down to keep “computational flow” uninterrupted. 5

In other words, Magnifica Humanitas extends Rerum Novarum’s protective vision by arguing that AI benefits can be morally counterfeit: they may be praised in the abstract, but if they depend on a “chain of exploitation that remains deliberately hidden,” they contradict the “fundamental principle of human dignity.” 5

This is not a mere change in industry; it is a continuation of the Church’s method: identify where a person is reduced to a tool, then judge that reduction as an affront to dignity and justice—whether the reduction happens in a factory or in a “data-to-profit” pipeline. 1 5

Sources for this section: Rerum Novarum’s description of concentration and a slavery-like yoke 1; Magnifica Humanitas on hidden labor, extraction, and the moral contradiction of efficiency without dignity 5

AI as a governance power: dignity requires contestability, inclusion, and limits on automated delegation

Rerum Novarum’s defense of workers includes practical moral claims: workers must not be deprived of the liberty tied to their wages and their ability to improve their condition; unjust theories that would strip people of disposal of what they have earned are condemned because they strike at laborers’ liberty and hope. 1

Magnifica Humanitas extends this directly to AI governance. It explicitly rejects the idea that AI is “purely technical” when it affects human lives: it “touches on rights, opportunities, status and freedom,” and “important and sensitive decisions” (employment, credit, access to public services, reputation) risk being “fully delegated to automated systems.” 6

The Church then identifies a distinctive danger: systems can act without the moral virtues proper to human judgment—without “compassion, mercy, forgiveness,” and without the hope that people can change—thereby generating “new forms of exclusion.” 6

It also gives a different, subtler problem: even when framed as neutral and objective, AI can reflect and reinforce “stereotypes or ideological bias” of those who design and develop it. 6

From there, Magnifica Humanitas converts dignity into regulatory and institutional criteria. It calls for:

• Transparency and accountability, so that decisions are “understandable, contestable and subject to oversight,” preventing individuals from being reduced to mere profiles. 7
• Inclusion and access, pairing innovation with investments that prevent widening the gap between those who have and those who do not. 7
• Equity measures, including taxation, social protection, and industrial policies to correct imbalances from concentrated wealth and power. 7

This set of demands is the AI-era continuation of Rerum Novarum’s insistence that justice must defend workers’ real freedom and real prospects—not merely their formal participation. In AI terms, that means dignity requires the ability to challenge, the limits of automation, and the institutional assurance that power serves the human person rather than replacing moral responsibility with machine outputs. 1 6 7

Sources for this section: Rerum Novarum on workers’ real rights connected to wages and disposal 1; Magnifica Humanitas on AI’s impact on rights and automated delegation, and on transparency/accountability/inclusion/equity 6 7 4

“Anti-slavery” in Rerum Novarum and in the AI age: trafficking, commodification, and personhood reduced to data

Rerum Novarum’s condemnation is already strong: it portrays conditions that verge on slavery-like domination through concentration of wealth and employers’ power. 1

Magnifica Humanitas renews and specifies the Church’s anti-slavery teaching for the AI/digital transformation. It states that the “fight against new forms of slavery is a decisive test” of ethical discernment. In continuity with Leo XIII, it “renews her firm condemnation of all forms of slavery, trafficking and the commodification of persons.” 8

The extension is not rhetorical; it explains how the digital environment can facilitate exploitation. In the same section describing the hidden machinery of AI, Magnifica Humanitas adds that criminal networks use online platforms, messaging systems, anonymous payment methods, and profiling techniques to recruit, control, and transport victims of trafficking—“very often minors”—reducing people to “data” and “packages” moved through digital circuits. 5

This is where the AI-era extension most clearly “inherits” the moral logic of Rerum Novarum:

• Rerum Novarum: wrongs that isolate workers and subject them to a domination-like yoke.
• Magnifica Humanitas: systems that isolate persons within digital circuits and reduce them to what is trackable, rentable, and optimizable.

Thus, dignity is defended not only against overt coercion, but also against commodification—the reduction of the person to an instrument, whether an instrument of profit (economic exploitation) or of computation/behavioral prediction (data exploitation). 1 8 5

Sources for this section: Rerum Novarum’s slavery-like diagnosis 1; Magnifica Humanitas on new forms of slavery/trafficking/commodification and the role of digital systems 8 5

A “Babel vs Jerusalem” anthropological lens that deepens Rerum Novarum’s social realism

Finally, Magnifica Humanitas extends Rerum Novarum not only in policy-like prescriptions but also in spiritual anthropology—how the Church interprets the temptation behind injustice.

Magnifica Humanitas frames the age of AI with two biblical images: Babel and the rebuilding of Jerusalem. Babel is described as a project “conceived without reference to God,” driven by uniformity and homogenization, sacrificing human dignity for efficiency, and aiming “to reach heaven without God’s blessing.” 2

It then names the “Babel syndrome” explicitly for the digital age: “idolatry of profit,” a uniformity that neutralizes differences, and the “pretense that a single language… can translate everything… into data and performance.” 2

Rerum Novarum, for its part, is also a social realist: it refuses utopian claims that would “delude the people” with promises of an undisturbed life, noting that real human conditions include bitter consequences of sin and the difficulty of social repair. 1 It attacks ideologies that come with false solutions.

So the “Babel vs Jerusalem” lens deepens Rerum Novarum’s realism: it teaches that the deepest failure in the AI era is not merely a technical defect but a moral and spiritual one—treating persons as data, treating efficiency as ultimate, and treating communion and responsibility as disposable. 2 3 1

Sources for this section: Magnifica Humanitas on Babel syndrome and the temptation to reduce persons to data/performance 2; Rerum Novarum on social realism and rejection of delusive promises 1

Conclusion

Magnifica Humanitas extends Rerum Novarum’s protection of human dignity into the AI era by preserving its core judgment—that justice must defend the person against systems that reduce workers to instruments—while expanding the analysis to new structures of power: digital decision-making, hidden supply chains, and algorithmic delegation. It translates dignity into concrete requirements of transparency, contestability, inclusion, and equity, and it renews an explicitly anti-slavery standard for new forms of trafficking and commodification enabled by digital infrastructures. 7 6 8 5 1