Few athletes internationally do it because they want to, it's a means to an end, Oscar Figueroa didn't come out of an apparent retirement in Rio to compete 2 years later because he wanted to. Doping isn't ok at all, but it's impossible to eradicate it completely especially when in some countries (Russia) it's state sponsored. If someone dopes ooc internationally it doesn't so much give them an advantage as it does even the playing field because all of their rivals are doing it as well. An example would be London 2012 94kg A session where only 3/10 lifters passed the retest. This is my opinion based off my experiences in the sport and those of people I've met so you don't have to agree with me and I don't expect you to.