Oh my. It was just an example. This
article by the New York Times explains explains that the top fifth makes 15 times more income than the bottom fifth. But when compared using consumption as the criteria of wealth the upper rich only consume four times that of the bottom fifth.
Again, if you want to increase demand, which you have already agreed is the core issue with the economy, you need to get more money in the hands of those who will spend it. My opinion is the best way to do that is through government transfers, which will in-turn increase demand and allow the economy to function at it's full capacity. This will ultimately benefit the rich as well.