Gambling is done for fun and not for profit. I know of some wealthy people in my vicinity that gambles, they do it for fun and not minding the out come of their results because they do have enough resources to support or finance their lifestyle but for some it is not so, with the money they have, they still gamble to make profit but the truth is that the gambling industry needs to make money and all these are just the path that brings the casino the funds they need to keep their casino going on.
As for me, I gamble for fun and not for profit making so I gamble moderately that I do not get it over my head to gamble excessively to the point of getting addicted.