Steve's talent (IMHO) is to get the best out of creative people, to charm people with his reality distortion field, and to tweak things slightly to make them much better
Doing this is at least an order of magnitude harder than any purely technical or directly productive work. People are fickle, ever-changing, unpredictable, complex, etc. Brilliant people are even more difficult to manage. The art of surrounding yourself with great people and getting them all working together is underrated.
Even if Steve Jobs contributed nothing to the ideas that were developed (which is unlikely, based on what I've heard), he still deserves the praise for being the human gravitational well that pulled all those people to work together and create awesome products.