Theirs nothing like gain in gambling, what is actually happening in the gamblling is grace to succeed, talking of greediness is happening directly in gambling, because i know that some gambling like casino and poker game their is nothing like greedy because as a gambler you have your own target of getting what you want in gambling.
Which direction are you taking it? No gain, no greed in gambling? You are taking it far and not correct as you contradict yourself as well. Try to know the difference between grace and luck, we don't have grace in gambling, we have luck, and grace does not leave you easily, luck does, it can appear and disappear at any time. That is why we possess grace, but luck is temporary. Aside from that, you might be greedy as a gambler, and being greedy does not mean the gambler does not have initial plans and targets, it is when the gambler does not care about them by being emotional while gambling.
I am Agree with you mate, luck is temporary and not forever as a gambler we all know that in the world of gambling all games are based on your lucky days then you will win. But we must remember that if we don't have our luck in our side for sure we will loss and greediness shall be follow and if once a gambler will addicted to much then there's a time that they can not control their self and always thinking that I'll bet for this in order to get my losses back.