That makes about as much sense to me as putting CEOs on the board of unions.
Basically, instead of having unions/employees explain in conspiratorial tones why management is evil, they see what's happening for real. It's a lot harder to say 'evil board' when you have a seat there and are (for example) facing massive losses - your job then becomes to build a collective, satisfactory solution rather than just stay in the opposition and complain. Because employees trust the board, they will also accept changes, sometimes hard ones.
https://en.wikipedia.org/wiki/Worker_representation_on_corpo...
You mean like the power to hire and fire them, tell them what to do, and how much they get paid?