I would disagree here. Unless there's a controlled study, both are just opinions. I wouldn't say there is any correlation between intelligence and ingesting drugs.
I don't discount that some may work hard/diet when on. Point is, it's so simple to gain on drugs, it's laughable.
Here is a link to the study http://www.jissn.com/content/4/1/12
Here is an abstract
Results
The majority of respondents did not initiate AAS use during adolescence and their NMAAS use was not motivated by athletics. The typical user was a Caucasian, highly-educated, gainfully employed professional approximately 30 years of age, who was earning an above-average income, was not active in organized sports, and whose use was motivated by increases in skeletal muscle mass, strength, and physical attractiveness. These findings question commonly held views of the typical NMAAS user and the associated underlying motivations.