When you look at leaders who become dictators and narcissistic egomaniacs, do they have in common a traumatic childhood in common? We see in adults today an insecurity that very often stems from an unloving childhood, it can come in abuse both psychical and mental and also in a  form of neglect. We know children develop their empathy frontal lobe early on in childhood, and if they are not shown love and how to care for others, animals and nature, they become very immersed in self, the self-importance, self-obsessed, self-motivated, everything self and very often at the expense of everyone around them. See more here on Narcissistic Sociopath and Psychopath

https://selfdiscoverymedia.com/2018/05/26/18-22-does-childhood-neglect-and-trauma-make-villians/