Suddenly
No Punting
Or it doesn't. Is there evidence money has influenced his judgement? I understand banning the appearance of corruption is valuable because it is hard to prove corruption, but that also means proving actual corruption is hard.
That's why it doesn't matter. If you take the money, you are corrupt. What in your heart of hearts might have done even without the money is hypothetical.
We've made corruption effectively legal more or less for the reasons you suggest, so it isn't so much a matter of law as it is personal judgement.