> An ape can leave its group and move to a different territory and not have someone else decide his life for him.

Ah, the myth of the noble savage taken to evolutionary extreme.

I highly recommend Steven Pinker's "The Blank Slate" if you'd like to disabuse yourself of this pernicious old wives tale. Then his "Better angels of our nature" should fix you right up with a more accurate and informed view of the world and society we live in.