To some extent yes, but mostly wrong.
There are plenty of studies around where guys were given test, did no exercise at all, and gained more muscle than guys that were training their asses off.
Getting a little sick of people saying "who cares if he's on roids, he has to work just as hard..blah blah blah".
In reference to becoming an IFBB pro, yes.
In reference to becoming a mad-lad juiced up festival goer that slays facebook broad minded persons day and night, NO.
EDIT: beaten to it by Boz
DOUBLE EDIT: LOL at slag being corrected