do you think take doping for victory sounds good?

MY QUESTION IS ABOUT WHY PEOPLE TAKE DRUGS FOR ONLY VICTORY?
Is victory is much important to them than that they put their life in danger.They can get many of diseases such as HIV AIDS and CANCER.
Taking drugs for this matter is illegal and it can also destroy their carrier also
They should be honest to their sport,they are just putting their own life in danger they have to built their sportsmen ship which is really very important for athletes.
really now it is becoming a worldwide problem and they don't even control their self.
well its not a matter of doping it is WIN-AT-ALL-COST ATTITUDE which let them doing this illegal work