The Google Wave example is a telling one - Wave wasn't the success Google wanted, so they scratched it. Nevermind that there were great uses for Google Wave, and there were probably hundreds of thousands of users on it, at least, who really liked it. In Google's eyes, Wave didn't succeed in becoming the huge hit they wanted, so it was a failure.
A small startup would have considered it a huge deal and pivoted on Wave's good uses until they turned it into a much larger project, IMO.