I think the qualification is necessary. Even Warren Buffet admits that he got rich in a very specific way using skills that would be all but useless in any other context but him winning the "ovarian lottery". https://www.sloww.co/ovarian-lottery/
Which kind of elides the fact that his father was a sitting US Congressman. Investors were willing to give large sums of money to a man in his early twenties so he could flip manufacturing firms. Ovarian lottery doesn't quite cover it.