I've often wondered about this while watching canine social groups in action. Despite the proverbial "dog eat dog", I've seen what appears to be an expectation of fairness and group order in dogs, even in a supposedly informal social group like pets at a dog park. I've often felt that animals with complex social structures might reveal the origins of "enlightened self interest." Cool stuff.
Nope, otherwise hot girls would be having sex with any ugly guy that wanted it.