Lance uses gear because he had cancer down there. In effect, he has medical license (HRT) because either way the cancer damaged his goods. They can't ban you for that. Even on HRT, you can be much stronger than normal so it is no wonder to me that he won. Even I am stronger for the size that I am. The poundages I use surprises bigger guys in the gym all the time because they don't expect me to be able to lift that much.
Also, Landis did not dope. He was caught with synthetic test in his system. He said he took something because of pain in his leg or hip, but I think he thought he could get away with taking test because he would have taken corticosteroids for the pain. They may both have 'steroid' in the name, but they are completely different things. Probably didn't do his research, lol.