"Done something bad" is not the same thing as "Continually acting badly"
If the public examined my life now, they would find zero abuse, zero adultery, zero poor treatment of other people. They may find some intolerance, some dismissiveness and certainly some bias, maybe some ignorance here and there.
But they would find someone who wants to understand people's position, is curious to learn about things he doesn't know about, and has zero desire to control other people.
I suspect more people are like me than like Weinstein and Gaiman.
"Having done something bad once" is not what this is about.