What about Victor Salva, the guy who did Jeepers Creepers? The one positive thing I will say about Roman Polanski was that he knew how to direct a solid psychological thriller, but Victor Salva is a total hack and he's still managed to have a successful career in Hollywood after being convicted of assaulting a 12 year old boy. He even wrote a scene in Jeepers Creepers 3 where this girl is telling some guy about how her stepfather had touched her as a kid, and the guy's reaction is "Can you blame him? The heart wants what it wants."

I'm pretty sure his directorial debut after his extremely brief stint in prison was a Disney Channel original movie.