Of course, carriers of the 7R allele weren’t well suited to every environment. People with dopaminergic personalities may do well when coping with novel situations, but they often have difficulty with relationships. That’s important because skillful social functioning also provides an evolutionary advantage. No matter how big, how strong, or how smart a person is, he’s not going to be able to compete with people who work together as a group. Individuals shouldn’t fight gangs. In this situation, when the need for cooperation is paramount, a dopaminergic personality is a liability.
