I picked a number that shouldn't cause an disagreement, and what happens?
Pick whatever threshold you want for wealth and income - it's going to vary according to cost of living, of course. In some areas, one might do fine with $1M assets and $100k/hr. That would put someone in the ~85th percentile for income and ~90th percentile for wealth. Leaves a whole bunch of people in worse shape. Eventually, that could lead to political policy changes that may disfavor the wealthy. It's yet another factor that will box in the Fed.