Come to think of it, Makaku from the Battle Angel Alita manga suffers from this.
To cut a long story short, Makaku was abandoned at birth, torched as a child with a flamethrower by the first person he ever met and was soon after turned into a powerful cyborg by the second person he met, a whimsical mad scientist.
This means that Makaku had absolutely no guidance of any kind throughout his life and went from 0-100 in power in the environment he was let loose in all while having the maturity of a child.
Unsurprisingly, all of his bad experiences and complete lack of moral or ethical guidance combined with unrivalled power turns him into a complete monster.
His near death experience as a child gave him a crippling fear of being forever forgotten. Since all he ever experienced from others was violence, Makaku set out to make a name for himself as the most monstrously violent criminal around so that nobody would ever forget him. How much of a violent monster? Well the bloke became a cannibal that got himself addicted to consuming the endorphins in people's brains for starters so that should give you an idea.
Problem for him was that he was so violent that everybody avoided him like the plague. Even bounty hunters completely ignored him as he was considered flat out too dangerous to go after.
This made Makaku feel alone, isolated and forgotten once more. He was flat out incapable of making friends like a normal person and too strong for anyone to risk their life against him. No friends, no rivals, not even any enemies seeking vengeance. Nothing.
Then comes Alita who is the person to ever seek him out for a fight. This surprises him so much that he becomes infatuated with her but since he doesn't really comprehend how positive emotions like respect, admiration or love work, the main way he expresses himself is once again through violence.
Sad, sad man.
