Actually, I've noticed the exact same thing. Steroid users can gain ridiculous amounts of muscle mass without lifting heavy.
With that in mind, I know guys at my gym who take retarded amounts of gear, lift like idiots (bad form, too much weight etc) and yeah even with all that gear they still look like shit. Sure, their bigger and harder than they would be without it, but nothing impressive, you wouldn't even know they were on unless they told you.
It still amazes me that people see steroids as the ultimate cheating miracle in bodybuilding. Sure, they do help but without proper training, proper nutrition, proper everything needed, they are just another wasted supplement. They are worth about as much to an uneducated idiotic user as is a jug of protein is to someone who doesn't have the rest of their diet in order.
With all that, in my mind steroids don't make the bodybuilder, intense dedicated training, a proper game plan and a sound diet make the bodybuilder, steroids are and should only be used to help them just as any supplement does.