Does lowering taxes on the rich really benefit anyone else?

 
The Bush Tax Cuts have been in effect for ten years.  Taxes on the highest of income groups have been lower in general over the past 30 years or so, compared to the previous 30.

By using the criteria I find useful, and I think that most people find useful: the employment/unemployment rates, kinds of jobs created and lost, income levels, inflation rates, cost of education, disparity of wealth distribution, general quality of life for the society as a whole; we can ask the question: what effect has the policies of lowering taxes on the rich over the past 2, 5, 10, 20, 40 years had on the U.S. economy? Have lower taxes on the rich done anything for anyone other than the rich?