Whether gambling is right or not, in fact, the landlord is not worthy of concern, because gambling is right or not, which has no influence on your judgment of the market. Whether investors make money or lose money is basically based on their own judgment on the market.

What the dealer really has an impact on customers is his reputation. Traders with good reputation rarely operate in the background, and even if they gamble, the market is fair.

I used to work in a dealer's office. As far as I know, small companies may gamble, while large companies combine gambling and hedging. The concepts of gambling and hedging are different. If there is hedging, no matter how many customers make money and go in the right direction, they are not afraid. Risks can be hedged through the market or large traders (such as big banks).