drugs are not the problem. drugs can be used to aid athletic performance, look at... every top-level athlete today. pick a sport from WSM to tennis, and they use drugs.
the point is not drugs, the point is that the sport shifted from an ideal physique which is seen as the peak of human development to "mass with conditioning" and no other qualifiers, meaning the owner of the physique could be an unathletic blob but as long as he's got the size and low BF he's the "winner".
bodybuilding was intended to represent the ideal, and while that can change over time, we're far from that now. people saw arnold as superhuman, people see jay cutler as grotesque. our eyes can tell when a body is athletic versus when it is muscle that represents nothing.