That's the main advantage the rich has. They can continue to try out their luck in different games but they poor cannot. Simply because the poor are restricted to a certain amount of money. They can't spend as they please. On the other hand the rich has abundant amount of money. So even if they loses 100 bets, it won't be enough to affect them that much. They can just move to another game if they feels like it.
Money management and greediness is one of the main problem of the poor. A poor man can accumulate 20 games to win $1000 with $1. They keep picking games from different league without proper studying of those league. Poor people see football betting as a gambling but the rich sees it as a business. They may stick to just few leagues they know we'll about and only pick few game with above 60% assurance of winning.
This is exactly what is making many gamblers to lose their bets even the ones that they might win but because of greediness or lack of money they will add other games that will give the bet a chance to lose.
However, rich gamblers don't give a fuck to what's going to happen to their games sometimes because already they have the money, soost of them are just there to catch the fun and not to look for profits.
But you know what? Even if they are there to look for profits or they are there to catch fun, there is still more chances that their stakes will also lose if they don't have the luck at that time.
Basically I think that most gamblers will act greedy when they have won, none other than because they think that luck is still on their side, so instead of withdrawing their winnings and enjoying it but what they choose is to continue gambling with a very high level of hope and confidence and hope that they can get a win with a much bigger amount than the previous win and it's the same as they create new opportunities to get a loss or lose.
I think for gamblers who have a rich background they will usually prefer to seek pleasure and entertainment, they come to seek entertainment from the busy business activities they do in the real world, so with that then I think that can be used as a reason why rich gamblers choose to make gambling as entertainment only, and also another thing is that they already have a lot of money and already know how to make money, so it seems very unlikely that rich people come to earn. Of course, no matter what and whatever purpose they bring to their gambling activities, the chance of risk is still very possible, no matter whether you come for entertainment or income, but the difference is that those who come with the intention of seeking entertainment usually will not be too excessive and will not return to betting if the previous result loses.