Old proverb: Beauty is in the eye of the beholder.
Since modern bodybuilding began over a 100 years ago, it has always thrived on the newest, biggest, freakiest muscles. You can go back over its history and look at all the champs that set a new standard when they came along: Steve Reeves, Arnold, Dorian or Coleman, etc. I wonder what the next standard will be in the years ahead once we get into gene manipulation or second generation steroids. Those bodybuilders will make Phil Heath and Big Ramy look like 98 pound weaklings.
In defense of bodybuilding from my own experience, there surely is thrill in changing your your body, and your appearance.