50 usd can be a nice win but it's not life changing at all
Even for people living in poor countries, winning $50 won't be life-changing.
I think that such winnings can be life-changing only when a lucky gambler first wins $50 and then immediately bets that $50 to win a huge jackpot. Sounds unrealistic, but it is theoretically possible.
remember that every month at least 1 person in the planet experiences a thing that has 1 in 1 billion chance of happening
so yes, it may be possible
but after all money is like a muscle
if you bench press 30kg you won't be able to bench 120kg the next day, it's a process
that's why many people who win the lottery end up where they were before winning after a couple years, they find a way to spend it all