I absolutely loved this. Of course the longer I'm out the more I think I want to study philosophy.
I wanted to add to your observation regarding selfishness being our instinctual starter. When my daughter was a baby I read somewhere that you should always have your youngest child or most convelescent person in the back seat on the drivers side when driving. The reasoning is that in an emergency our first impulse is to swerve away from damage to ourself. In an accident split seconds matter.