You gave a good answer, because a college degree (any kind) cannot be the only measure of success, let alone becoming rich. A person who has never been to college can be rich if he has great talent, an idea, and knows how to sell that idea. I know people who barely graduated from high school and today they are rich, and I also know people who graduated from university and work for them 
That's true, another mistake is people think their degree is the end game of their career. They do want to work in other jobs, but they always think they're only good on their degree. So, they force themselves to learn things related with their degree, but they refuse to learn on other thing.There are three things can make someone get rich:
1. Illegal
2. Popular
3. Business
For me popular is above skillful.