Indeed greediness has the ability to trigger gambling addiction. Most at times, gamblers get into losses because of greediness and when trying to recover their looses they get into addiction. Looses cannot be recover in gambling, what is lost is lost, as an attempt to get it back welcome addiction.
It's the attitude that every gambler has to eliminate as we will never feel fulfilled in gambling if we are greedy.
Gambling is risky and whether we will accept it or not, the odds are not in our favor, so if we win, we need to be discipline enough to stop, same with losing.