Do not forget all amazing discoveries made by cycling's so called cheaters. Where would the Furies, Joshuas and, dare I say it, Usyks be today if it weren't for Armstrong's pioneering work on blood doping in the 90's?
I would say that this one of the greatest casualties in the war on doping, Dr Ferrari especially has amassed a wealth of knowledge on blood and human energy systems that will never be acknowledged.
https://en.wikipedia.org/wiki/Michele_Ferrari