People easily forgot or they are simply to young...
If you are one of those, I recommend you to have a look at what Apple did to Xerox.
I love the newbies that think they have a perspective on the past of tech. So easily they forget Apple was given access BY Xerox and compensated Xerox handsomely for their visit. The sad thing was Xerox was a photocopy company run by a bunch of sales guys that did not have the vision to see tags future.