Farmers who have chickens for eggs especially on a large scale, easily get tired of eating the eggs from their chickens or even eggs in general. Caterers get tired of eating their own pastries, just as people who are exposed to certain produce get tired of them due to over exposure. Do you think this experience is the same for casino owners and owners of sports betting platforms?
Do you think that the owners of casinos and sports betting platform, gamble as much as other people do? If they gamble, do you think they gamble on their platform?
It's funny you use chickens as an example because between the actual bird and the egg, there is an incredible range of versatile dishes that you can produce from them. A more apt example might be drug dealers who should not get high on their own supply. Casino owners have already accrued the knowledge that gambling is essentially a losing game for the customer, Vegas was not built from paying out winners. If rich casino owners choose to gamble it is because they know it is simply a fun form of entertainment, for them, as it would make an insignificant dent on their income if they lost a bit of money. They'll wake up the next day and their betting streak will just be an after thought and they are generally unlikely to make a dangerous habit out of it.