"If the rest of households stop dis-saving, it will require the rich to really up their spending to keep the system going. There may not actually be enough goods and services for the rich to buy to make this work, but even if it were possible, it would almost certainly increase the resentment of the have-nots until they took it out on them through the ballot box, if nothing else."
From the source document:
"The image of a dystopian future in which the rich gate themselves off from the rest of society for protection while buying off politicians to ensure their continued privilege 2 doesn’t help us at all in understanding when the current situation will end. And the reality is that we really don’t know when it will. All else equal, falling budget deficits will hurt profitability, but if we do finally get the much-delayed recovery in investment or continued strong buyback activity, it is possible falling deficits could be absorbed without margins falling back toward historical averages.
Rising investment would, in all likelihood, sow the seed of falling profits in time through increased competition, aswould buybacks and dividends through rising savings or a societal response. But as for when, it is impossible to know."