It's just that most of us are subject to the stereotype that rich or famous people are always smart people.
But in reality, artists, singers, athletes, or movie stars are often just people who can do one skill well, but their horizons are even smaller than the average person.
Honestly a lot of rich people just got lucky too. I am more talking about the ones who got rich from being a celebrity. A lot of them don’t even have actual talent to begin with. It’s often a running advice in the show business that fame is not forever so you really should be wise with the money you receive and don’t spend it on lavish lifestyle just for it to disappear when you need it the most.