Sporting authorities do not want to punish clean athletes, or cut off the money | The Economist explains
— Read on www.economist.com/the-economist-explains/2021/07/28/why-are-russian-athletes-competing-at-the-tokyo-olympics-despite-the-countrys-ban

Difficult to comprehend the world of Olympics.

There is more to the story.

ROC (Russian Olympic Committee) may appear to be getting away with too much.