History is filled with evidence to the contrary Henry and Gary C. Without the rich  taking risks and innovating there would be no middle class ...the cycle moves slower than you want but its clearly there.  Here is just one example ...see if you can come up with some more ..its fun for the entire family. 

Henry Ford came up with the assembly line and made alot of money manufacturing cars... the trickle down came by way of wage rates rising to $5.00 hr (so they could buy his cars) and shorter work weeks. Innovation always favors the 1% -10% and then the impact of those innovations trickle down and in the case of Ford helped create the middle class by doubling wages due to the increased productivity.  Had the government been taxing Ford excessively and had they buried him in needless regulations then its possible he wouldn't have been able to take those risks and in doing so slowed progress and the benefits that came pouring down as a result.  sorry voice to texting this in my car