The Millionaire Next Door is based on statistical questionnaires and interviews. The premise is simple: live below your means, spend less than you earn. What is pop culture about that?
It makes sense that a plumber or A/C shop owner don’t try to live the lavish life. Being content in a lower-class working neighborhood, they keep their expenses low, reinvest their profits in the business, save, are frugal. This all makes sense. Not to you? You think these people got rich by chance?