DARPA was defense money, Xerox PARC was corporate money. The one big success I can quickly name that's "pure" is the web from CERN. (Okay I looked up, SMTP, RFC 821 from 1982 submitted by Jon Postel from ISI USC. But emails with the familiar @ were invented at a for-profit company by Ray Tomlinson more than a decade earlier.)
I'm not saying we should just slump into apathy, I'm just trying to point out that many mostly good things came from big corps. (And the usual problem is that they still hold the keys to the kingdom. For example see how hard it is to send mail to MS hosted email inboxes. And of course they hide behind "oh our users choose this aggressive level of filtering".)