There's another point to this, too - once you see the accomplishments of doped competitors, nobody really wants to see the sport again undoped (which it probably hasn't been for three quarters of a century in endurance, or longer).
Each different organization has loopholes. In the NFL, testing was done for testosterone, stimulants, etc, but not for HGH for a long time. Conte talks about other testing loopholes above, and then goes further in another video and mentions that at one point, Marion Jones tested positive and the USOC (it may have been another org) wanted to bargain with another athlete to find one positive and Jones not because it would be more valuable to leave Jones in the contest (valuable for viewership and advertisers).
To think that anyone can compete clean is extremely naive.
Each different organization has loopholes. In the NFL, testing was done for testosterone, stimulants, etc, but not for HGH for a long time. Conte talks about other testing loopholes above, and then goes further in another video and mentions that at one point, Marion Jones tested positive and the USOC (it may have been another org) wanted to bargain with another athlete to find one positive and Jones not because it would be more valuable to leave Jones in the contest (valuable for viewership and advertisers).
To think that anyone can compete clean is extremely naive.