Extraordinary altruists are more prosocial but not more moral

Why do some people translate prosocial motives into costly action while most do not? Prevailing accounts in moral psychology emphasize moral values, judgments, and self-standards as primary drivers of prosocial behavior. However, these constructs often show weak correspondence with real-world action, reflecting a persistent belief–behavior and judgment–action gap. We investigate this gap by studying extraordinary altruists—individuals who incur substantial personal costs to benefit strangers (e.g., living organ donors, humanitarian aid workers, heroic rescuers; N = 173)—in comparison to demographically similar controls (N = 117). Participants completed measures of broad worldviews, dispositional prosociality, and moral self-standards, alongside behavioral paradigms assessing generosity. We introduce a Moral Discounting Task that parametrically varies recipients’ prior moral behavior to examine how moral evaluations are translated into action. Across analyses, extraordinary altruists were not distinguished by stricter moral self-standards or heightened moral self-regulation. Instead, they exhibited a consistent profile of prosocial worldviews (e.g., beliefs that the world is good, cooperative, and improvable), greater gratitude and appreciation of moral excellence, and lower cynicism. Behaviorally, altruists showed reduced moral discounting, maintaining generosity even toward recipients who had behaved selfishly. Exploratory mediation analyses indicated that prosocial dispositions statistically accounted for altruists’ sustained generosity. Together, these findings suggest that extraordinary altruism is not primarily driven by stronger moral principles, but by a broader prosocial orientation that sustains helping under uncertainty. This work reframes costly altruism as emerging from how individuals construe the social world and weight moral information in action, rather than from heightened moral stringency.