the people you mean are people who have made a lot of profit when they are not working, money is still coming to them, while most people with low salaries are still trying their luck at gambling places
It has been noticed that the average category of people that have money to gamble are gambling than the rich people. That is the fact, but there are many average people too that do not gamble, some are gambling but not gambling for much profit, the little they earn they are okay with it and if they do not make profit, they do not still go beyond their weekly gambling budget.
while we all know that gambling places are not fully profitable, sometimes they can get a loss.
Loss is inevitable in gambling, the reason we should reduce the frequency of gambling and to reduce to money we are gambling with. If a gambler is not addicted, patient and gamble for fun, he will make profit than lose, but gambling should not even be about that, it should be about losing and not thinking or feel depressed about the lost money because the punter should be able to afford to lose the money used to gamble.
and of course everything must be done patiently and without any panic or pressure because it can disturb the gambler's psychology.
That is true, patience is very important in gambling, without patience, there will be more money loss.