Trickle down offers no motivation
Capitalist always argue that profit is the motivation that makes the engine of capitalism succeed beyond all other economic concepts. Yet, once those capitalist become wealthy, they no longer see profit as a systemic motivation - just a personal one. They see their wealth as something that runs off their table when they spill something and it trickles down. When enough of a nations wealth becomes tied up in this self-centered mindset sufficiently to prevent profits from being fairly shared, innovations from being developed, capitalism's profit motivation ceases to function and we end up with economic stagnation. The one-time capitalist who have now become nothing but common hoarders, destroy the capitalism that made their wealth by succumbing to risk paranoia, hoarding their wealth, placing it in inept investment banking and hedge funds and keeping it from circulating in the innovative small business engine at the heart of the healthy capitalistic market place. Sound familiar?