I would partially base it on tax records, honestly.

And yes, I’m specifically trying to exclude billionaires who declare their residency in zero income tax states; they’re specifically trying to evade societal responsibility in the form of tax avoidance, so we should avoid making them a part of our society.

Clearly there’s more nuance to be implemented, but I think addressing wealth inequality very pointedly at a foundational level would be a GREAT idea.