I agree to that, being contented with what you've got and taking advantage if opportunities open to win some from your gambling activities, there's always a good outcome when you know when to stop if it's needed, experienced gamblers understand that it's not usual to win that's why they are able to quit and enjoy, while those who got greedy those gamblers risk everything back as they can't control that desire to win more.
There is no advantage for someone who is greedy in gambling and even wherever we are greed is a big problem that will make someone end up worse. Feeling enough for winning in gambling in any amount will make someone more responsible so that they can set limits to stop in the conditions of victory or defeat obtained in it.
If someone finds it difficult to determine these limits then I am sure they will lose more money in gambling. We know that gambling is not an activity to generate money consistently and if this can be controlled then involvement in gambling will be much more responsible.