They are more open with their development division, as they have to be. Windows is a completely different division, and more often than not, the notable members of the development division will call out their company.
Windows and development are subject to the same executive team, and same orders from the top setting corporate direction.
It was precisely that break-up that was ordered by the US court during the anti-trust case, and stopped with the arrival of the Bush administration.
Mobile and XBOX aren't subsidiary companies. Mobile rolls up closer to Windows than the browser team does which led to the mess that is UWP and the Windows 8 (and on) start menu.
Sorry, your comment is inaccurate.
Do you judge a given country population by the act of their leader? Because you have no reason to care how a given country divide its stuff. If a country does something that must mean that everyone in this country support this thing right?
If people act malevolently, encouraged by the leader of the country, then that leader is bad, and the country is bad because of that leader (and their associates who could stop the malevolence).
It doesn't matter that in some small corner of the country there's a grandad baking cupcakes for orphans, the country isn't saved from the malevolence (or ignorance) of their leaders by that.
You can give countries aid to convince them you're nice; but if your leadership is countenancing selling armaments to the Saudis -- knowing they're using them against civilians -- then they're corrupt.
All companies who want to do some evil for profit also take part in window dressing, it salves their own consciences and acts as PR.