Well, no-one answered your question directly, so here: https://ibb.co/dVDSDG https://ibb.co/dVDSDG That is cumalative wealth up to 100%. The blue line is if ev

Well, no-one answered your question directly, so here: https://ibb.co/dVDSDG https://ibb.co/dVDSDG That is cumalative wealth up to 100%. The blue line is if everyone is equal (poorest 20% have 20% of the wealth). The red line is linear increase where the richest 20% have 5 times the wealth of the poorest 20%. The yellow line is the actual wealth. These figures are just for the USA; the world one looks too much like a cliff.