Every business created for getting profit, it`s ok - no one wants to work for free. And a casino gives a chance to win. Only chance, no any guarantee. For the normal gambler, who wants to get emotions from the process - it is enough. The problem only with gamblers that sure that they must win, some of them we see even on this board.
Every casino is required to work hard so that it can start to get it after a while and continues to increase with time and effort. Indeed casinos give gamblers a chance to win but we, gamblers, must remember that casinos will not always allow us to win. There will be times when we lose, namely when we lose self-control and at that time, the casino will take over so that we lose and cannot achieve the goals we want. So it will not be easy to get big profits with small capital because of the losses we may get every time.
Casino always win. Even if one gambler win - 10 gamblers lose. If you are lucky enough to be this winner - it doesn`t mean that the casino lose - they get their profit from the other gamblers.
And every casino understand this situation and try their best to attract gamblers and you`re right - it is a work and who works harder - get more gamblers, get more profit.
Situations, that the OP showed us in this thread are extremely rare, so for 1 winner there are thousand of losers. We must remember it when we gamble.