> A counter argument could be that it is unfair for the rich to be exposed to such increased scrutiny merely because of their money

I think it is very fine to discriminate against people based in things that give them enormous power, quality if life and they can easily get rid of. Unlike being discriminated and scrutinized for having no money , you can easily escape scrutiny due to wealth by giving away wealth with no meaningful reduction of quality of life (after a given point)