> the global median income crept from about $0 to $10,000 sure over a few centuries

The floor is 2-300 USD equivalent, because that's what subsistence farming is, and it took two centuries to go from $1500 to $18811: https://ourworldindata.org/grapher/global-average-gdp-per-ca...

> We want a world where everyone can live at least a 6- or 7- figure salary.

that's a massive shift of goalposts from "not having enough to live comfortably is that we have an enormous number of humans and limited resources".