No one is making a criminal out of the actor, his acting capabilities aren't being questioned here.. point being made Is that should movies be made on serial offenders, which might encourage some sicko for all the cinematic glory will be getting in future.
Anything can encourage some sicko anywhere. Where do we draw the line? There are appropriate warnings, ratings, parental controls put in place to prevent kids from watching this type of stuff. And that’s really all that can be done. As for adults, they have free will and are responsible for their own actions.