This is a very dangerous mindset. I hope they (poor people) will soon realize, because of course it is very dangerous if they enter the addiction phase.
Most people who gamble with the hope that they might get significant wins which might change their lives actually realize that gambling isn't a way to earn money, but they are just hopeful and feel that maybe one of these days their luck will sparkle a little bit and they may hit a jackpot. The reason why they think of gambling this way is because they know that gambling and lotteries are the only ways that might change their lives in just a blink of an eye, so they keep trying.
What I feel is that a person who is poor and gambles with this mindset will barely get addicted to gambling because they obviously have a very small amount to carry on their gambling activities and once they lose that, they don't have a choice but to wait until they get some more money that they can use to try again. And for someone to get addicted to gambling, they need to have money to be able to make more deposits once they lose the initial bankroll.