The benefits goes only to the owner and not on the gamblers.
Actually making money from gambling is not a benefit. It's something that, in the long run, may end up ruining someone's life. And the lessons you'll learn from gambling most of the time would also come from bank breaking losses. Probably the stress relief and enjoyment are the best things you'll get from it.
True, gambling is not give you benefits or opportunity, because in the future maybe it leads you into bankruptcy. Gambling was give you addiction, on the first you will become lucky in earning money or bitcoin then after that you will not notice that all funds you have will become lost little by little that cause of your bankruptcy in the future.
Yes gambling is enjoyable to do but you just need to avoid it before they ruin your life and become miserable.
Although we cannot expect a regular benefit from gambling, but still i think that it give us a chance to make a good money in a low time. If a person is lucky he can surely make good profit from it but he need to have good planning and strategy so that he may not lose his money back, because most of the people who have make good profit from gambling they lost their income back because they continue gambling in hope to make more and more.