Most nimble startups will run away from the regulated aspects of Wall Street. Really none of the functions list escape regulation. To disrupt Wall Street you w

Most nimble startups will run away from the regulated aspects of Wall Street. Really none of the functions list escape regulation. To disrupt Wall Street you would have to get legislation passed and regulators on board. The time scale for change is a different order of magnitude than most startups can handle. These people generally come from or are connected to the industry and will fear change. Also, what type of disruption would actually benefit society? Not saying nothing is needed. It's just that the arguments would have to be strong to even get an audience in Congress, and they think they just fixed everything.