In my view, most human beings are innately neither moral nor immoral but rather amoral. They are driven by emotional self-interest and have the potential to be either moral or immoral, depending on what their self-interest dictates, and will be influenced in their choices by emotions and socio-cultural contexts. Circumstances will determine the survival value of humankind's moral compass in that being highly moral in an immoral environment may be detrimental to one's survival and vice versa. Indeed, our neuronal architecture is pre-programmed to seek gratification and feel good regardless of the reason. All apparently altruistic behaviour serves self-interest at some level.

p.16 - Emotional amoral egoism (2008)