His whole thing was being the smartest, most tasteful, and most creative person in the room. There was a lot of illusion/delusion there, but even with his failures he was absolutely focused on product design, user experience, and aesthetics in a way that Cook's Apple isn't.
Cook's Apple is a hugely successful predatory and cynical cash extraction bureaucracy, with a world-leading hardware division and a shockingly mediocre and failing software division.
The goal is penny-pinching acquisition, so we can expect more and more of this from Apple until there's a change of leadership. (If we're lucky...)
Frankly I think Jobs saw Cook as a key operator to ensure the firms future survival and future growth; I'd imagine Jobs foresaw the tremendous impact the smartphone would have and all Cook had to do was be a shrewd operator as Apple had built such a huge advantage over competitors by the time he was dead.