We've on occasion made the point that affirmative action has done as much harm as good for people of color. I begin to suspect a similar unintended consequence arising from the wave of accusations of sexual harassment following the revelations about Harvey Weinstein.
I would expect more men, including those not in the public eye, will begin observing the Mike Pence rule of not being alone with a woman other than their wife or mother. It is a way of armoring oneself against accusations of harassment, avoiding "he said-she said" situations.
If this behavior change takes place, it will have the effect of reducing harassment as such behavior is less likely when witnesses are present. However, it will also reduce women's career opportunities if men avoid working with them.