I think it's an intriguing problem. I mean, I do think that not only are people incredibly self-interested but that life itself is. It's what enabled life to continue to flourish in a way. Everything is kind of out for itself to some extent. That's not the only element though. Sometimes creatures are also out for each other due to the importance of social bonds or even an instinctive inclination (the mother crocodile for instance does not eat all her eggs, she tries to defend them). I guess I see with humans that the species is a victim of its own success. But since people aren't entirely instinctual they can choose to do something other than that which they might tend to do. I rather refuse to believe that all of the history of life that brought about what is now did so only to fail by its own nature. So maybe I don't believe we're entirely self-interested. I guess I see the problem as not being divorced from the rest of nature or something, but as simply doing what all of nature does (as very much exactly what the rest of it is). What was the point of the history of all of that life and evolution if the template was flawed?