Why men masterbate in front of women? #metoo

The internet is filled with speculating article responses to #metoo. The answer to the question is simple.  

1. Men who like their penis
2. Women who like penis

I know the #metoo crowd wants all women to bond over the shock of male sexuality.  However #metoo isn't about male sexuality at all. It isn't about female sexuality. Would be more productive to have:

#no-thanks

#yes-i-like-it

#what's-in-it-for-me