I think the issue is not just that that its capitalism causing wage issues, its the fact that people think they can control the painless socioeconomic transition that comes with incomes increasing with matching productivity gains, or worst halt and try and reverse it. One or more things will eventually cause a pop/crash/revolution:
- Endless high returns on capital: Wealth accumumlation for - Large debt countries moment of reckoning: At some point a black swan event leading to higher inflation with no leg room for more borrowing like 2008. Bond markets will dictate fiscal tightening and politicians will likely take control of monetary and fiscal policy ending capitalistic bedrocks for them. This will feed into the Endless high return on capital cycle. Government will bow out of every service to service the debt through taxes.
- People not seeing any upward progress in their economic status or careers: Large populations find high upfront cost/headwind to enter into new economies. Failure to adapt, political choices become extreme.
- Deflationary effects due to progress of china, korea, japan etc due to cost of innovation crashing: At some point large economies become advanced enough that cost of highly specialized goods exported by private companies in highly indebted countries will fall causing non dollar currencies to experience deflation and undermine reserve currencies.
The only countries with leverage left would be the ones the ones with technology that is highly integrated into the society at a level that its people can rapidly change behaviors and adapt without losing wealth/landing on the street. After all you can convince a person he wasn't cheated by God/Demagogue, but you cannot convince them that they are not hungry.
Some of this is already happening in fits-and-jerks motion relative to pace of progress since industrialization. Add things like climate change to the mix and you might not be able to ask "how fast?".