But still deep down there's some greed in such desire. Because at first one wasn't force to gamble he or she actually choose to . So as a gambler one should always be aware that either they lose or win . That's why is always advisable to gamble with money you can afford to lose, so that if one endup losing by any chances he or she can easily let go for a while and gamble another time when Their thinking straight instead chasing after losses and same time , endup making rash decision that may lead to more losses.
I have a different side of looking at it. Yes, those who have a lot of money they can afford to put aside some money for gambling and will not regret losing it but there are some people who do not have money to gamble. They will have to use their in-use money to gamble and hope for a win. Such people can't afford loses as a loss can make their life even more miserable. So the only option left for them is to take the risk or not gamble at all.
Also when they are not gambling, they are taking risk too because who knows that they may win big amount and this may help them improve their life style.
It's a tough situation to be in and if you are one of those who can afford some money loss, then I must say that you are privileged.