I suppose the question then is, does increasing taxes on the rich help the poor?
I wonder if any studies have been done on that?
Interestingly, the link posted by @Audie in post #15 might shed some light on this.
From the article:
The Revenue Act of 1913 had a top rate of just 7%. It was raised to 77% by Democrat Wilson, then brought down to 25% by Republicans Harding and Coolidge, then raised to 63% by Republican Hoover, then even higher under Democrats Franklin Delano Roosevelt and Truman to 94%. Democrat Kennedy’s ideas brought the top rate down to 70% and then Republican Reagan dropped it to the high 20s. After Reagan, it was raised again and has been hovering in the high 30s ever since.
Overall, just 2% of American households were subject to the original 1913 income tax. Over time, that percentage increased until FDR extended that burden to 85% with his Victory Tax for World War II. Since then, politicians have reversed course and slowly but surely reduced that 85% figure to the point where 45% of American households pay no federal income tax at all. The new income tax law will likely increase those who do not.
I think it can be said that the period from 1945 to 1970 was probably the most prosperous and productive era in US history, and the standard of living improved by leaps and bounds far beyond anything Americans had ever seen before. At the very least, it shows that having a high rate of taxes does not bring about economic doom, as many conservatives would have us believe.