If the social context that determines what you find beautiful is mainstream media, why do you expose yourself to mainstream media.
For myself I think the strongest influence on which traits I find attractive comes from Salsa dancing. Strong positive emotions that I feel during dancing gets attached to the particular features of the girl I'm dancing with.
This doesn't mean that my taste is completely different then the taste of the average male. I value a high muscle tonus more than the average guy.
Today you're much more likely to see Rubenesque models (Crystal Renn, Toccara Jones, Lizzie Miller, Robyn Lawley, Candice Huffine, Tara Lynn, etc) as well as older women and less conventional beauties (Queen Latifah, RuPaul) everywhere from Italian Vogue to makeup advertisements.
I don't have name recognition with any of those names.
It can simply opt out of that part of mainstream media culture.
I don't see any reason to consume more mainstream media than I need to actively influence mainstream media.