passionate vs. passive
It is _usually_ the case that 'the work of "passionate people done in their spare time"' is what makes a company valuable to other passionate people. Not the well-planned and misplaced grand ideas some manager has blessed. Most successes within a company are 'accidental'. At least, no one higher up gave their permission for any such success.
Short version: Any innovation at Microsoft is *without* the company's knowledge.
Sure hope those passionate souls have their names noticed somewhere else besides Microsoft.