The opportunities to become a good person are not the same for everyone. Modern European ethical theory, especially Kantian ethics, assumes the same virtues are accessible to all who are capable of rational choice. Character development, however, is affected by circumstances, such as those of wealth and socially constructed categories of gender, race, and sexual orientation, which introduce factors beyond the control of individuals. Implications of these influences for morality have, since the work of Williams and Nagel in the seventies, raised questions in philosophy about the concept of moral luck. In The Unnatural Lottery, Claudia Card examines how luck enters into moral character and considers how some of those who are oppressed can develop responsibility.

Luck is often best appreciated by those who have known relatively bad luck and have been unable to escape steady comparison of their lot with those of others. The author takes as her paradigms the luck of middle and lower classes of women who face violence and exploitation, of lesbians who face continuing pressure to hide or self-destruct, of culturally Christian whites who have ethnic privilege, and of adult survivors of child abuse. How have such people been affected by luck in who they are and can become, the good lives available to them, the evils they may be liable to embody? Other philosophers have explored the luck of those who begin from privileged positions and then suffer reversals of fortune. Claudia Card focuses on the more common cases of those who begin from socially disadvantaged positions, and she considers some who find their good luck troubling when its source is the unnatural lottery of social injustice.