Is your claim that a company must invent something from whole cloth to be "innovative"?
Amazon.com did invent Cloud Computing, Philips did invent the CD, Sun did invent Java, Toyota did invent the hybrid, AT&T did invent the cell phone, Xerox did invent the GUI. Those are the companies that run on innovation.
A refinement on the laserdisc.
"Sun did invent Java"
A refinement on C, C++, and Smalltalk.
"Xerox did invent the GUI"
A refinement on Doug Engelbart's work at SRI. (Edit: Though many of the researchers working for him later went to PARC, I find no evidence that Engelbart himself ever did.)
Now here's the real question. If inventing a new type of laserdisc that's five inches wide is innovation, why isn't inventing a GUI-based computer system that costs half as much as a Star and a third as much as a Lisa? If inventing a new object oriented language with C style syntax is an innovation, why isn't inventing a smartphone with a multitouch screen and unprecedented amounts of storage space?
What do you mean innovation.
That doesn't mean they aren't innovative. It's easy to invent the MP3 player. It's hard to invent the MP3 player that people actually want to use. That doesn't suck.
Apple did not invent the phone, mp3 player, video player, application store, etc. They just perfected and skillfully crafted hypes around them. Microsoft did not invent the Office suite, IDE's or the hardware acceleration layer, but they did perfect and deploy them through aggressive business strategies.