See this is the problem with ratings and reviews on the internet.
I'm only likely to fairly rate the things that I'm interested in and therefor receive recommendations based on those ratings, so often I don't get recommendations for legitimately good things that I wouldn't otherwise watch since most of my ratings are within my areas of interest. On the other hand.
If for some reason I do watch something, but is generally out of my area of interest and I don't like it based on being predisposed to not liking it and I do rate it poorly, who does that serve?
While I do know there are malicious bad raters on the internet and very likely ones driven by a gender bias, I don't think that is necessarily the problem here. I feel the problem is our human nature to not care about the things we don't care about.