Earlier quoted context omitted.
I do not believe this counters the OP's point. While the core purpose of financial markets may be beneficial vehicles like hedging and price discovery, the fact that the pragmatic outcome of the law is to leave wall street as one of the only outlets for "legalized betting" cannot be ignored. There is a sister post that in trying to argue against this only seems to support the point. "a house that always wins"; as has…
For those who believe in efficient markets, or markets that are rigged by hyper-intelligent people against the average investor, I'd like to call their attention to a bit of history recalled by Matt Levine in his column today: "Google announced that it was buying a private company called Nest, for instance, and the entirely unrelated stock of Nestor Inc. (ticker: NEST) was up 1,900 percent"
This explanation should be very familiar to those who have frequented groups like bogleheads that drink the indexing koolaid. (I admittedly do, as one could probably tell from the above)