"On the one hand, I can imagine where the computing world would be without the work that Jobs did and the people he inspired: probably a bit less shiny, a bit more beige, a bit more square. Deep inside, though, our devices would still work the same way and do the same things."
Ultimately, computer architectures serve real world use cases. Innovation in use cases results in innovation in architectures. There are countless new technologies that exist because of the products that Apple invented.