Christopher Ryan and Cacilda Jetha have written the essential corrective to the evolutionary psychology literature.
Stanton PeeleWhen spectators and fans say about drunken brawls, violence, and dog fights, "Well, football players are prone to these things - that's why we admire them," they are encouraging terribly detrimental behavior. You might even say - a la Roman gladiators - they are egging on this behavior.
Stanton PeeleWhen people can say to themselves - "What I'm doing is justified," there is little chance of their modifying a behavior.
Stanton Peele