changing an institution’s environment to increase the sense of control among its workers, students, patients, or other users was one of the most effe… - Jonathan Haidt

The emotion of disgust evolved initially to optimize responses to the omnivore's dilemma. Individuals who had a properly calibrated sense of disgust were able to consume more calories than their overly disgustable cousins while consuming fewer dangerous microbes than their insufficiently disgustable cousins.

Schwitzgebel even scrounged up the missing-book lists from dozens of libraries and found that academic books on ethics, which are presumably borrowed mostly by ethicists, are more likely to be stolen or just never returned than books in other areas of philosophy.49 In other words, expertise in moral reasoning does not seem to improve moral behavior, and it might even make it worse (perhaps by making the rider more skilled at post hoc justification).

An important dictum of cultural psychology is that each culture develops expertise in some aspects of human existence, but no culture can be expert in all aspects. The same goes for the two ends of the political spectrum. My research3 confirms the common perception that liberals are experts in thinking about issues of victimization, equality, autonomy, and the rights of individuals, particularly those of minorities and nonconformists. Conservatives, on the other hand, are experts in thinking about loyalty to the group, respect for authority and tradition, and sacredness.4 When one side overwhelms the other, the results are likely to be ugly. A society without liberals would be harsh and oppressive to many individuals. A society without conservatives would lose many of the social structures and constraints that Durkheim showed are so valuable. Anomie would increase along with freedom. A good place to look for wisdom, therefore, is where you least expect to find it: in the minds of your opponents. You already know the ideas common on your own side. If you can take off the blinders of the myth of pure evil, you might see some good ideas for the first time.