Given the immense political connections of the financial class, it is a virtual certainty that any attempt to "level the playing field" would end up falling not on them but on the more productive rich and the upper middle class. In other words, the burden will fall on the people who actually earned it. If anything, the financial elites will find a way to benefit from it at the expense of the "lower rich."
It's not the haves vs. the have-nots. It's the connecteds vs. the connected-nots. The connected-nots with high net worth are just peasants in fancy suits.
Really... doctors, lawyers, engineers, business owners, and executives in productive industries ought to be marching in the streets too. This is not the 99% vs. the 1%. This is about a sophisticated, complex, deeply embedded system of financial con artistry vs. everyone else on the planet. What we have here is a worthless parasite class -- a decadent nobility -- that has buried itself into our civilization like a tick.