Capitalism doesn’t really work when it relies on the profit motive alone. You can’t tame the desire for money with sermons. You can only counteract greed with some superior love, like the love of knowledge. If market-rigging is defeated, it won’t be by government regulators. It will be through a market innovation in which a good exchange replaces bad exchanges, designed by those who fundamentally understood the old system. The people who go to work pursuing knowledge, or because they intrinsically love writing code, sometimes end up making more money than the people who go to work pursuing money as their main purpose.