I think the important thing to note is that Google is the only large company whose business model depends almost completely on the success of the Internet.
This is why we see them at bat for Net Neutrality as well as efficiencies within communication protocols.
Microsoft, Apple, Oracle, HP, IBM . . . those companies make their livings in other ways.
The only company comparable to Google would be Yahoo in this way. Their inability to keep engineering talent means their contribution to The-Internet-As-Platform is not as significant.