“On this framework you can build just about the entire edifice of morality.”
– I should reconsider this. It’s cooperation and interdependence that is responsible for the evolution of human morality in both its small group and large group incarnations. This framework that Jesus described is the basis of present day, everyday ethics, including human rights. Very often, the large-group morality of culture and religion can directly contradict the basic rules of human ethics, leading good people to do bad things.