It seemed that Ricco said some particularly nasty things about other riders during the '08 Giro and it seems likely that his performance was due to CERA (by inference being caught at TDF later). His comments came across as pretty mean-spirtited and cocky. To think that his ego was inflated by a suspect performance makes him come across as that much more of a low-life to me.
I remember reading an interview with Roberto Heras after he won the Vuelta most recently and he talked about how he claimed the victory "above all, with humility". I think that is interesting. I guess he was probably cheating, too, but at least he was humble about it. I think if I were in a position where I was awarded something that I knew I did not desrve, I would be very humble about it and not arrogant and cocky like Ricco.