Actually gambling is for fun. In gambling you either win or lose, so don't risk gambling. Now if a poor man bets excessively on gambling, he may be left destitute if he loses. On the other hand, if a rich person bets on gambling, he may lose the bet and become poor. However, if you are lucky and win a lot of money in gambling, now greed will work in you, you will want to gamble again and you may become addicted to gambling. Now if you have enough income then you gamble for fun but don't take excessive risk in gambling.
Whether rich or poor, their risk will depend on the size of the bet. If a poor gambler bets a very small amount, the poor gambler's risk if he loses the bet will be small. In case of rich gambler, if the amount of bet is very high, i.e. a large amount of dollars is bet, and if he loses, then it will not take long for him to go bankrupt. So every gambler, rich or poor, has risks. If both gamblers are defeated then there is a difference in difficulty to manage money in every gambling case. Rich gamblers can easily manage money from poor gamblers so that rich gamblers are usually more than poor gamblers for betting.