Virtues are socially constructed and socially learned, but these processes are highly prepared and constrained by the evolved mind. We call these three additional foundations the binding foundations, because the virtues, practices, and institutions they generate function to bind people together into hierarchically organized interdependent social groups that try to regulate the daily lives and personal habits of their members. We contrast these to the two individualizing foundations (harm/care and fairness/reciprocity), which generate virtues and practices that protect individuals from each other and allow them to live in harmony as autonomous agents who can focus on their own goals.
...we find that people who self-identify as liberals endorse moral values and statements related to the two individualizing foundations primarily, whereas self-described conservatives endorse values and statements related to all five foundations. It seems that the moral domain encompasses more for conservatives—it's not just about Gilligan's care and Kohlberg's justice. It's also about Durkheim's issues of loyalty to the group, respect for authority, and sacredness.
Read the whole thing. It's very tightly argued, and thus excerpts cannot do it justice. It has some common threads with McCloskey's The Bourgeois Virtues.