Ben Johnson
Johnson became an overnight superstar in Canada when he won gold medals at the L.A. Olympics. However, the seedy superstar destroyed his reputation and legacy when he failed a drug test. Instantly, he broke his fans’ hearts and received a lengthy suspension.

The IOC also stripped him of his wins because he cheated his way to victory. Global humiliation would usually be a good lesson but it didn’t teach Johnson anything. He took PEDs again later when he returned from his suspension. In the end, he became a parody figure of disgust and sympathy (via The Guardian).