He doesn't strike me as having any other real goals than examining fear. Power, money, or social change aren't real motivators, he just wants to totally understand fear because it fascinates him. Seems INTP-ish.
Another INTP villain: Herbert West, the Re-Animator.
Johnny C (Johnny the homicidal maniac). I thought about it for a while and I think he might be INTP. He's always questioning and analysing himself and the world around him. He's a misanthrope and kills people who even slightly offend him.
When I imagine an INTP villain, I think of the quiet kid from the bad family who everyone in the high school makes fun of until he shows up on career day with a couple of TEC-9s and lights the place up.
"The human body must be something other than an animal organism." - Martin Heidegger