I don't care about the cheating. It's a bike race, as arbitrary as any other sport.
He destroyed other people's lives who told the truth about him. End of story. I don't care how much money he raised for cancer research. This is an issue that Christians have been close to for centuries, and have worked out the details in every generation, because it comes up in every generation. We have had millions of such people, we see the reasoning that it does some good in the world, we understand that no one is perfect, and we still reject it.
Do not do evil to others for selfish reasons. Even if you give a showy fortune later, it doesn't matter. That does not cover sin.
Believe me, that is not easy for experienced Christians to say, because that temptation is brutally ours, front and center. We have learned habits of giving and service, and want those to cover for our exploitation of others. In terms of worldly, cultural advance, that makes perfect sense. A 51-49 advantage in goodness, multiplied decade over decade, would create a paradise and is justified in this world.
We run a higher risk.