The term "self-made" is somewhat subjective in the world of wealth. Sure, there are billionaires who came from true poverty to strike it rich. But plenty of other so-called self-made rich people started out with affluent families and elite, expensive educations.

Think Bill Gates, GoPro's Nick Woodman and Facebook's Mark Zuckerberg. Or even Donald Trump, who's dad was a New York real estate tycoon.