I think what people are losing sight of is that Jobs' influence extends far beyond Apple's own products. Microsoft was not working on a GUI until they saw prototype Macs. MP3 was a fringe technology before the iPod. No one paid for it (there was no way to) before iTunes. Smartphones before the iPhone had tiny screens, WAP browsers and styluses. Tablets before the iPad had desktop operating systems, and again with the damn styluses.
In each of those cases, the Apple product drew a sharp line across the calendar, dividing the history of those technologies into the epochs before and after. When Henry Ford decided to mass-produce an affordable car for the middle class, that affected everyone who later bought a Chevy. Others follow, some more successfully in terms of units shipped and money made, but we tend to remember those who blaze the trails.
MS clipped GUI from Apple. Apple clipped it from Xerox. Xerox got the idea from military radar systems. Such is life.