> Advanced natural bodybuilders will top out around the physique of a Steve Reeves, which is big, but nothing like a Schwarzenegger or later pros where the drugs are in play.

It's also worth keeping in mind that many "natural" bodybuilders are also using drugs, just less aggressively. Apart from the rampant "fake natty influencer" phenomenon, there is simply no way for competitions to catch every possible stack/cycle (especially stuff like HGH or insulin).