No offense intended, but if you honestly feel this way about bodybuilders, why do you hang out on an internet board that calls itself Getbig Bodybuilding, Figure and Fitness Forums?
None taken, sir.
I've commented upon this question before ergo, I shall be brief. For me.

Camaraderie with those of like mind.
I have been a bodybuilder for decades (more physical culturist, really) and even competed a few times but admittedly was NOT good enough to win but I had fun and my family and friends were kind enough to sometimes attend.
I know that from the 60s on, big time bodybuilding was primarily drug driven but I could accept that as I knew more than a few gentlemen that competed and took steroids but they did have a genuine "base" built upon years of training without the drugs and accepted that when off, they would shrink up like a leaking balloon and would have to start all over again.
They didn't want to risk their lives for a chromed plastic doorstop. They worked jobs and had families. The guys that were homosexual (at least those I knew) were not fucking buttsluts for money. There were guys at Gold's that did that but while I knew a few of them and they were never rude to me, I could not say they were more than gym acquaintances. The same is true of guys at Joe Gold's World Gym when he opened that up. I met Joe once and he seemed a very nice man.
I prefer the physiques of the 40s through possibly 1985. It started to get stupid weird around that time.