Sadly, he probably can't even define what a big win would be. Casinos know this. They're pretty adept at identifying the persons that have these compulsive capabilities. They're easy targets. They're easy to prey on.
Casinos are corporations.
Corporations are not human. Their sole purpose is to make money. Corporations are probably better at rationalizing than compulsive gamblers. The amount of correspondence from a large casino chain that continues to flow into my mailbox can attest to the irresponsible behavior of well-known mainstream casinos. This continues even today.