I think you grossly misunderstood my point. Furthermore, entire social theories are built on the idea that selfishness is the driving force behind all human be

I think you grossly misunderstood my point. Furthermore, entire social theories are built on the idea that selfishness is the driving force behind all human behavior. I could quote Nietzsche or Schopenhauer, but there are also contemporary examples (Dawkins and Singer, to name a few). I don't know if I agree with them or not, but there's plenty of conceptual drilling to do before dismissing them as "sociopaths."