More likely than not he/she inherited it. It's true for the vast majority of multimillionaires, from royals and aristocrats (obviously) to the Waltons/Rockefell

More likely than not he/she inherited it. It's true for the vast majority of multimillionaires, from royals and aristocrats (obviously) to the Waltons/Rockefellers/Rothschilds/Abby Johnsons of this world, to the Chinese Party Princeling, to the 2nd generation of Silicon Valley aristocracy like Laurene Jobs & co.