I think the main goal of such people is maintaining the money not to finish. Because winning big will only make such a player vulnerable to losing more money in gambling. These types of gamblers are currently not beginners, they've been running the process of learning gambling for a long period. Hence being able to manage the money set aside for gambling wouldn't be a problem for the gambler, due to the experience he has garnered in his years of participating in gambling. Gamblers who face the fault only need to make money and don't have any experience or research available to help them achieve the goal of gambling as a career. We all understand how difficult it is to gamble, not to talk of gambling as a career. Somehow the person playing as a career with his skills would earn the money left for him by the casino. His percentage, because he gambles cautiously, would be given to him as a reward.
Since the house has made it that way, it's not something to be bothered about, whether the gambler would earn it or not. The mistake some gamblers make is that they want to get the reward immediately, as you said. Sometimes it takes weeks to gain the money, and when such people, inexperienced players, see the reward they hardly control it, instead the money leads them to gamble more. While those who are experienced enough to handle gambling as a career, may see losses, it still requires their management skills to know when to stop for the day. However, this type of career is not meant for most gamblers. Because they won't be able to withstand the problem gambling that might face them in the process. That's why I do recommend, that players with skills and gambling experience venture into such a career. Moreover, the player must have lots of money to finance the gambling lifestyle.
People who decide to make gambling their career should understand that they will probably experience more losses than other people. They don't realize that gambling is not something that can be pursued, let alone winning, which is very difficult to achieve. Gamblers who continue to try to make money and make gambling their career will probably not last long in using gambling because they will experience more losses, and that means they will lose their money. Even though they already understand how to gamble, it doesn't guarantee they can make money more often because in gambling games, losses will come. And if we are not ready, we will only waste the money we use because we will not be able to control ourselves while gambling. And that means we'll just run out of money sooner than we think.
Those people will only make a mistake after mistake, which causes them to suffer even more losses. But maybe it is true that someone who has the ability to gamble can try to build a career from gambling. But he must remember that this effort does not provide a great opportunity because he still has to face the upcoming defeat. He also has to think about the growing risk of losing money, especially when he loses control of himself. If he is ready for the risk and has a way to overcome the risk, perhaps he can try it, but he cannot hope that his efforts will produce satisfactory results.
Fine, the gambler would get multiple losses, but I'm in the motion that the gambler may not run out of his entire bank roll. Setting aside enough money in their bankroll is a good quality for a professional gambler who wishes to turn his habit into a career. As they tend to plan it all through till the end. Depending on how long the person wants to remain in the career. Making money off the career may not be the player's motive. What entices them is gambling alone, that's why they have chosen it as a career. The players who are not in this field may see it as boring, due to the limited lifestyle the gambler would live all his years of running gambling as a profession. This may not be achievable in online casinos, due to the temptation of gambling oftentimes. Like I once said, these people join comp clubs. It helps them to remain on the roll for long, with free hotel rooms, food, etc. Hence the bills won't be hefty for the gambler, he only has to bother about gambling. And that doesn't necessarily mean he'd be a high roller, because he has lots of money in his bankroll.
If he wagers gradually and doesn't waste his money, which he wouldn't due to his level of gambling experience, the gambler won't face many losses in the future. Instead, they could win or profit more, from the comp points and few jackpots. Won as a result of consistent playing of the casino. He would have some strategies that'll help him in the case of maximizing his winning chances. However, the rate of such gamblers is not many, hence the few we see and think of as gambling professionals who do it as their career doesn't possess all the required skills and experience needed to be employed in such a profession. That's why losing keeps erupting and the player ends up being uncontrollable. In terms of gambling, our motives determine our emotions, ideas, and actions. Which may go a long way in affecting the type of results we get while gambling.