Can concentration of wealth save high end audio?
Given that ultimate product pricing should be commercially defined by a combination of component cost, labour cost, research and development expensing, distributor margin, retailer margin, downward pricing pressures (copying ease; volume ease), and upward pricing opportunities (copying difficulty; volume difficulty) - then there would need to be a pretty obtuse and sustained set of circumstances in these factors, IMO, for a concentration of wealth to bale out a contracting industry. For a concentration of wealth to prop up the industry depends, IMO, on a component of the industry and a component of the potential customer base indulging in the greed/status game - which, IMO, you can see from time to time in this and a few other forums.
This does not act in isolation, nor is it definitively capable of being quantified, but I suspect that a higher proportion of profit now stems from tapping into the more excessive wealth of the top, perhaps fairly disinterested, 1% of the population by increasing general awareness (a bit) but by exploiting the profit margin (a lot) when compared with what happened maybe 20 years ago. Will it in isolation matter that much? Probably not.