Seems pretty clear to me that he's a full blown sociopath. I know it's bad form to diagnose people online but the guy basically prides himself on it and makes no attempt to hide it. He just doesn't view others as human being.
Well (allegedly) being a robot lizard would explain that. Neither are known for a lot of empathy towards human beings.
The rich man is also perceived by the lizard brain to be wise, intelligent, witty, and handsome.