He has written hundreds if not thousands of stories over the last half century. So many of those have turned into Blockbuster movie, lame TV movies, Indie films, and TV shows. We can argue later about how "literary" many of those stories are, but his impact on popular culture today is undeniable.
Although he has occasionally written or said some cringey things out of touch with the current zeitgeist (who hasn't?) and has struggled with his own demons, from what I've seen he has always demonstrated that at his core he's a decent human being struggling, like we all do, in a scary world.