He was born to make us laugh. I think instead of focussing on his shortcomings and marriages, it is far more important to focus and discuss his craft.
The lookup Hanna speech [1] at the end of the great dictator is must read / listen. One of the best monologues in movie history. Tell me if this speech doesn't move you!
[1] http://www.americanrhetoric.com/MovieSpeeches/moviespeechthe... (added link)
You know why? What tipped the scales is high profile British writer listing him (along with some other people) as potential communist in a secret list submitted to Intelligence.
You know who compiled that list? George Orwell.
http://www.charliechaplin.com/en/biography/articles/205-Chap...
The article makes it sound like he just raped his way across America, and perhaps he did -- I wouldn't know. It does note that he was accused of this by a Nazi sympathizer, but says that the accusations were essentially true.. About the man who made "The Great Dictator".
The journalist doesn't bother to mention that he did settle down for what was by most accounts a loving relationship, and must have been a successful marriage by any standard.
It's interesting to read about as it's the sort of thing you see in so many other stories about "stars" sleeping with groupies or other admirers, often below the modern age of consent. I've wondered before how much of that has to do with the stereotypical entertainer's lifestyle or what it says about arrested development in performing artists.
I'd propose that what's different in the last two hundred or so years is that the middle class exists, is large enough and is literate enough to impose its values on 'upper class' citizens, or at least has a large enough media platform to shame them.
In the west, Victorian middle class citizens really took up the idea that social improvement was tied to comportment. We see this kind of thinking all the time still, for instance, I just got an e-mail from Quora with the title "Why do billionaires dress so badly?"
Top answer: because they don't have anyone to impress.