I wrote about this earlier and was advised to remove anything that was negative from my site if I want to ever get a job in the adgame again.
This is an old hot potato. It is what everyone in the adgame knows but never says anything about.
It goes without saying that it will never be equitable and we are certainly not the only career where gender makes a difference.
But the real kicker is that agency creative departments have their own culture. And it is fostered by those that are on the inside of that culture. And believe me, you know if you are "in" or "out".
And this culture is supported by the top down, which is management.