Personally, I don't feel sorry for her. I think she is getting what she has earned. Like with the Bonds issue I think she is far from just the tip of the iceberg. She is just the most successful of many.
The cheating and corruption in atheletics is probably overwhelming. I heard one guy talk about how, at a track meet, just before they get into their starting postions, a guy would walk down the line and point to a couple runners, telling them they were on tap of drug testing after the race. Frequently some of those tapped would come up lame before the race and not run. The assumption being that they had done their steroid run within the period where it's detectable, they'd better not complete the race. It is a business, and it is extremely effective one.