The way company law is set up in Norway, you cant as a board member do anything else than what is best for the company you are board member in. Doing something different would mean you could be held responsible. They could fire the board, but the next board have the same rules to go by.
"What is best" is of course, a matter of opinion.
I'm not sure this is as concrete as you seem to think this is, though i'll admit i'm not familiar with the details of norwegian law, what you say is true of most countries in terms of duties.
