I have been following pro cycling for about 25 years now, so I started just before EPO abuse became widespread and it was obvious to me at the time that something sinister was going on as speeds went up, at the same time as riders appeared to be suffering less.
This talk about 'levelling the playing field' - b*llocks! As mentioned above, 'all animals are equal, but some are more equal than others'!
Things were not very equal for those who wanted to compete honestly, or for those who could not afford to cheat, or who didn't want to risk their health.
Young pro cyclists were clotting to death in their sleep in the early 90s before the doctors worked out how they could cheat more safely. Their playing fields were not particularly level! (I nearly died of clotting last year so I am particularly shocked that so many otherwise healthy young athletes condemned themselves to early graves that way.)
The drug users and blood-dopers were cheats. Some of them became wealthy cheats and they do not seem in a hurry to hand the money back, even though they obtained it illegally. Some of them were likeable cheats (Ullrich, Basso ...) and some were not (Armstrong, Ricco ...) but they were all still cheats!
It's good that Ullrich has finally owned up, but he took way too long.