Most of the 1% in NYC make their money in capital gains, which is taxed at a lower rate than middle class wage earners. Ayn Rand propaganda about losing the producers made sense in the 40s, but today we live in a world where the Koch brothers, just two men, can afford to fund entire election cycles... and one hedge fund manager makes more money than all the teachers in NYC combined. Our problem is that we have a distribution system where all the money is stuck on top - indeed, our suppliers are sitting on unprecedented levels of cash - but they can't invest it in the real economy because people on the bottom don't have enough money to buy what is produced - so, as a result, our producers have to manufacture asset bubbles in order to reinvest their surplus into "growth vehicles". This is why so much of the Bush tax cuts flooded into Housing and its ponzi securities and derivatives.
Rather than merely taking care of the suppliers (as we have since 1980), we need to incentivize demand as well - we need consumers who make enough money to buy what they capitalist produces.
Giving the wealthy additional tax incentives (more money) won't change the fact that neoliberalism, globalization and the politics of austerity have driven down wages to the point where workers cannot buy what they produce in sufficient volume to warrant an increase in production. Until the consumer is whole again, it will be more profitable for corporations to sit on cash.
Our largest employer, Walmart, doesn't pay workers enough in wages and benefits to buy stuff. They can barely survive. Henry Ford, one of our greatest capitalists, believed that workers needed to make enough money to buy what they produce. In 1980, with the election of Reagan, we decided to ignore that logic. We drove down wages in order to lower the cost of production so as to incentivize investment, and we expanded credit to the non-wealthy, who have spent the last 30 years going deeper and deeper into debt. This credit orgy gave us a temporary boom, but consumer debt levels have finally come home to roost.