He built a shed in his own garden because the quote was absurd. A neighbour asked. Then her sister. Eleven sheds later there was a van with a name on the side and a waiting list into the spring.
Creating wealth usually starts with solving a problem that was standing in your own way, and then discovering the problem was general.
The distinction worth holding is between having money and making something people want. The first can go in a bad year. The second travels with you.