It is always the thirst that would drive someone back even if they could ruin their life, I am not just implying on gambling but also in other things as well.
Once they get the pleasure or experience something that they like, they would surely comeback for more it is always the start of addiction.
And you will start feeling that emptiness when you win, OP's assessment mostly happened as there are many gamblers who experienced that win, starts thinking that they can easily repeat everything over and over, they want to please that desire which eventually they can't control things around gambling.
It's always a must that you have that control, even you experienced that win, you'll not be feeling that adrenaline to play for more,
Just pure entertainment and nothing else..
those who have a good mindset, gamble responsibly, I think they will immediately cash in the winnings they get, because they know that if they continue, there is a big possibility that they will lose their winnings, some people who gamble do not have good self-control by chasing wins, and when they get a win they don't cash it out but they continue their gambling by increasing the bet amount to get a bigger win. This means they can lose all their winnings along with the capital they bet, because there is no guarantee that they will win again once they have won. they do this because of a sense of dissatisfaction that drives them to continue gambling and because of greed that they cannot control, and as a result it only makes everything chaotic.
That enjoyment that they experience starts creating that lust or desire to ask for more, they think that with what they've accomplished from their first win can be repeatedly done every time they will attempt to play. And that starts everything with addiction, aiming for more instead of being happy with what they've achieved. Most of the time gambler seek for more money as greed dominates them.