Rich get richer, poor get more in debt, GDP grows from both.
I don't know. If you assume rich people hold assets that are vulnerable performance wise to the exposure of equities, rich people are currently taking a bath given that the S&P is basically flat (except for dividend reinvestment) past 30 months (SPY was $411.49 on Apr 9, 2021, today it is $412.55)
Having cash and taking advantage of treasuries and other loans is providing pretty solid returns as well.
The rich people’s accountants have this covered for the most part, I think they will be fine.