There’s no guarantee of this happening whatsoever. We’ve already seen private companies gut internal training programs in favor of increased hiring of experienced people and this is only going to continue.
Economies have to provide work in order to facilitate consumption. If there are a handful of people making all of the money and gutting pay and job security to the core (i.e. improving efficiency), people are going to start rejecting the system wholesale and it’s not going to be pretty.
The French Revolution didn’t happen in a vacuum, once people lost all hope of having a semblance of a decent standard of living, they didn’t just let rich keep on living, did they?