I knew you'd respond to this and we're definitely going to agree to disagree on this, but I believe in whole that you're wrong. We as a species (and the species we came from) decided where the needle lies on morality for our entire existence, entirely independent of our genes, often independent of our upbringing (for both better and worse). The only people who 'know better' are ones who have witnessed how good life can be without all the raping and pillaging, and even then some still choose violence. Our culture primarily defines our morals though, which is basically just sparkling peer pressure at that point (we are apes after all).