Bodybuilding back in the day was even less of a sport.
Think about it, if you didn't have "it" there was nothing you could do, it was all genes, gaining mass wasn't possible due to technology.
Today a less genetically gifted can compensate via more drugs, more food, harder training. Even today it's not a sport, it's a beauty pageant, but there are more aspect where you can compensate for genes, there's more of an actually competitive aspect to it.
What could anyone do to beat Steve Reeves? Nothing, if he was "perfect" why even have a show. Even today, in the "classic" category it's mostly genes, either you have the structure or you don't. Back in the day there was even more of a faggotry aspect to it, as we have guys here commenting on Steve Reeves' beautiful face.
If you think guys today look like shit, that's fine.