And photos like these below?
Actually I think this topic is part of a much bigger topics and that's bodybuilding's dependence on photography. Without photography, bodybuilding would never have existed. And sexual preference has nothing to do with that. How many straight guys have been inspired to be bodybuilders by looking at photographs of other bodybuilders? All of them! Without photography bodybuilding, in the past and up to today, would not be what it is.
As for the gay dressing of bodybuilder's photographs, of course there is the gay segment of the bodybuilding subculture that likes these dressed up photos. I must add, I think it's a much smaller segment (but economically crucial to the subculture) than is portrayed here on Getbig.