The odd thing is, he was given that humanizing story, in just his, irrc, third appearance. His origin story combines the angst of tormented aristocratic children like Roman Sionis, tormented super-soldiers like X-23, and the disturbing exploitation of explorers like Christopher Columbus.
And then...literally nothing has been done with it for fifty years. He's actually deteriorated as a layered character since his initial creation, despite having been improved visually.