About 5 years ago i took a PT course, more as a life skill for myself than to actually train others. After about 6-9 months training myself I had a couple of people ask "what's your stack bro?". Err, nothing in fact, and never would.
But you are right. With the work you can basically be in the top 1% of physiques without roids, as 99% of people arent prepared to put the hours in the gym, or clean up their diet.