You're right, another somewhat strange but valid reason is that every rich person has a fairly large degree of being egotistical and that is something that is very characteristic of most of them, so in view of this, it could be said that rich people are not opposed to playing a lot in casinos risking a lot of money, because they take great care of their money, they don't like to lose it and they know that in casinos it is easy to lose.
Good information where a rich person always wants to get richer with his money and is always busy competing with the rich. He understands the value of money and does not want to waste his money easily, which is why rich people are less addicted to gambling. But in the case of poor people, they do not understand the value of money and sometimes, due to excessive greed, they want to earn money in the easiest way, which they find in gambling. That is why a poor person is more easily attracted to gambling than a rich person.