Maybe others can reply for the other names in your list, but at least Larry Page tried to sell the tech behind the Google search engine to all the major search

Maybe others can reply for the other names in your list, but at least Larry Page tried to sell the tech behind the Google search engine to all the major search engines of the era. None of them wanted outside tech (NIH syndrome, etc) and thought their stuff was "good enough". Based on that, if one of those search giants had offered Larry $3B, what do you think he would have said?