It's left up to the audience to decide. For instance, you would probably think Larry Flynt is immoral but that movie about him from about a decade back was rip roaringly entertaining.
That's the point...immorality is entertaining. I guess I'd rather shoot for morals than just entertainment.
The father of the modern pedophilia movement should be portrayed as disgusting, not just falsely "amoral". Lots of sicko stuff around these days.
Interesting that the Kinsy film was also written by the guy who wrote "Gods and Monsters"...another homosexual "amoral" film. The junk is all over. Be entertained by it if you want.