True, true, and in fact a lot of genetics are really "epigenetics" which is nature directed by nurture. Technically genetics explain up to 80% of IQ in adult people, but I believe most people fail to account that it might not be innate genetics you can't change, but epigenetics. Alcohol messes up embryos and sperm quality (thus genes), yet the majority of the population drinks anyway. There's probably other factors like malnutrition during pregnancy, stress, air quality, etc etc.
Yeah, I can see that.
Children are naturally narcissistic and have a lack of complex empathy, aka understanding people that isn't just projecting your feelings onto them. Most may end up developing due to culture, or predisposition. But a bad guy genetics man with a good life wouldn't ever have the need for it, he would develop skills to justify his entitlement, to assert his superiority, use people to fulfill his needs, etc. Like your average greedy pedophile politician or something.
But I'm actually surprised how much it takes for the average person to kill.