I’m talking strictly the rules of gameplay, and applying that metaphorically to competition within the workplace and war.
Taken literally, of course the experience of playing a board game should be fun for everyone, regardless of the outcome.
But if you want to stick to the metaphor, I would agree that if you’re playing board games with sore losers/winners should result in finding new people to play with.
And similarly, if you have coworkers that are only looking out for themselves and their own success, without regard to the success of the team, find a new place to work.
But that’s the point I was trying to make.