Because if the people we are talking about are rich people who are also investors or business people, they will use gambling more as place to have fun and don't really care about money, after all the way they gamble is also different.
But if it is only limited to rich people, like those in general who have a lot of money, then it is clear that they gamble not just for fun but to make profit and of course rich people like this are willing to spend more money and spend longer time to gamble.
It all depends on their personality and status as rich people behind the scenes.
It just that people from lower middle class economy are still trying to make money easily and quickly, which is why responses about gambling will differ between their social status groups.
After all, not all rich people don't care about money, those rich people who aim to make money from betting will also have regrets if they lose big.
Just look out there, not all rich people are the same as you say.