Okay, let's look at what Frankenstein did and compare it to what Moore is accused of doing;
Frankenstein; used a rehearsal as an excuse to kiss a hot playboy model. Pretty gross and disrespectful, but she was clearly an adult and I'm sure has dealt with much, much worse.
Took an inconsiderate and vulgar photo of her while she was sleeping, in an effort to be funny. Once again, a bad thing to do and demonstrative of a lack of judgment on his part, but no lasting damage, really.
Not to mention the victim was not grossly powerless compared to him. They were both entertainers.
Moore; molested underage girls. Aggressively pursued teenagers who were still in their formative years while in a position of authority, abusing the public trust. May have even attempted to force himself on one or more young women.
Yeah, while Frankenstein was undoubtedly wrong, Moore is still 100x worse.