DIO is also the most blatantly evil of the main villains, with the worst of the others being amoral with few redeeming qualities, and the best of them being well-intentioned. Any nuance DIO has is ambiguous as to whether it's genuine or a part of his manipulative nature. The Corrupter: DIO is a corrupting influence who turns whoever weren't already irredeemable monsters, into his warped way of thinking, either through literal brainwashing or his charisma.