In some cases that could be true. I have judged many shows where the all natural guy takes the whole show over the roid users.
It all comes down to knowledge of working out, how to eat and your body.
If a guy is all natural and has the above down he will smoke an AAS user who doesn't have that all down every time.
Genetics are the real key.
You could take 98% of the population and have them work out the same as a pro, eat the same stuff as a pro, and take all the same AAS as the pro, and you will not look like one.