At a high level, I believe that's the essence of the story (whether is real or made-up).
Today, in a globalized world economy with saturated markets, we are lured into thinking that "the great next thing" will be a product of "brilliance". I think this is a good reminder that it's not. That in fact, on average, sustainable success is a product of a life's work and dedication to a purpose. That in fact, the Jobs, the Zuckerbergs and the Gates of the world are merely outliers and that we should look beyond the expectation of immediate and flamboyant returns.