- Literally speaking, most of his statement I agree with, because it is true that if we want our capital to grow, we should only dedicate it to the investment that we know can give us profit.
Then just in case there is a wealth of gambling, it is just a finger, and that is just fortunate, unlike the natural way development or wealth is really in investment, and most poor people are hoping for luck compared to people who want to struggle with the right system.
That's because he's mostly right, but it also has to do with risk the banks don't want to take. They know rich clients are more willing to invest and that they have other assets that they can use to cover a potential loss. That's why the risk is much lower with them. Higher probability of investment with greater chances of debts being repaid and the choice is obvious - they'll go to the rich neighbourhoods.
That said, casinos are not "mostly" in the poor areas. They're everywhere, just the types of games evolve from slots and lotteries into high stake poker and similar.