People are dumb. Anarchy is certainly not the answer to the shortcomings of capitalism, and hanging effigies of the only people who understand the system is not a way to solve the problems we're facing. Killing the fools who understood enough to get us into this mess sure would make it hard to get out of the mess after the dust has cleared. There is no way that we can simply legislate the banking system into working again: we need the people who know how to make the gears turn. Furthermore, not all bankers are evil, and I seriously doubt anyone who constructed the complicated financial instruments that imploded with the housing crash did it knowing how hard things could fall.
Anyways, those are my thoughts on that.