I read most of the threads, no one say that he is rich with playing the gambling. you are one and only person who said that gambling make you rich, actually i saw a most of the losers but not a winner man from gambling.
You are right, maybe if there is someone who became rich from gambling its only few, many people who gamble has many losses than winning so its hard to find someone became rich. the reality is its hard to get rich especially in gambling.
In the end only the gambler operators are becoming richer, they are smarter than us as they are in the business to make profit. They study with statistics and human behavior so they know there is a big opportunity in gambling as gamblers tend to gamble hoping to win more money.