I mean there are several books and movies written about Armstrong and the like, cycling is full of drama and people apparently like it because Armstrong has a huge fanbase and is still very successful/wealthy despite all his exposed corruption and doping.
I am sure there are plenty of serious amateurs who are clean and honest but to this day I cannot watch professional cycling of any kind, they are all doping and cheating one way or another just using the excuse "well everyone else is doing it".
(adding link to reddit analysis just to be useful https://old.reddit.com/r/Velo/duplicates/uegizk )