Of course the purpose is to make money with a high risk! How can this even be a topic? It's like this new crypto gambling lottoshi.. such a huge amount for a prize.
Because not all people uses gambling as a way to make money, some people do it for fun only on their spare time. Indeed the number of people who uses gambling for fun purpose is low compared to those who gamble to make more money. That's why it becomes a topic, to know our reason why we do gamble. Whether we are one of those who gamble for fun or one of those who gamble for money.