VW's supervisory board has co-determination, which means that Union of German workers has half the voting rights. The Supervisory board monitors and approves corporate statutes, and is appoints the members of the board of management.

Even with such a democratic (closer to atleast) approach if whistleblowers are salted, I don't have much hope that quasi-secretive exec cabals are going to be more open. Outside a few niche startups, that eventually ditch any 'don't be evil' anchors.