Why? Keeping afloat a system that siphons all the fruits of progress to the 0,01% by throwing just enough trickles to the bottom so they don't revolt?
The top 0.01% earns 5% of all income. The top 1% (which includes many Facebook engineers, doctors, etc.) earns 20%. The vast majority of the "fruits" of the system go to normal people.
Citation needed. I recall the top 1% earning 50% of all income.