You mean the cops who are taking gear?....sure
You dont "have" to do anything....what do all the other athletes in other sports do?
I would like to see an IFBB division that is natural, or at least stringently tested. However it won't stop anything-we all know how to use something and get around the test.
Other sports are the same way, guys do what they need to. Every time money is involved you end up trying to find an edge. Businesses break the law, people break the law, etc. in order to advance and win.
Ronnie Colemen, Barry Bonds, and you have one thing in common: Without the genetics and talent, no drug in the world will get people to your level.
As for your integrity, you may be endorsing something that you know will use puffery and maybe something you know doesn't 'work like steroids', but:
You would not endorse something, in this day and age, that is not good in comparison to the other stuff. People hate on BSN now because they are so popular. When they were new, everyone loved them.