<edited> Wolfram is obviously a genius but, like a lot of geniuses, so ahead of his time that he'll be recognized, maybe, decades after his own death.
I can't think of any case where that's true. Einstein was recognized as a genius before his death. Most are recognized from childhood (Carl Friedrich Gauss, John Nash, Blaise Pascal, John von Neumann, etc.)
Wolfram was, in fact, a child (or at least teenage) prodigy.
Seems more common in media fields (Van Gogh, Lovecraft, etc.)