Insofar as you need to win the game to even be able to play the metagame it doesn't matter what structure the metagame is.
The metagame here is the media environment and campaign habits. It doesn't seem to me like you have to already be in office to affect it at least some.
See this Newsroom clip.
Basically, their news network is trying to change the way political debates work by having the moderator force the candidates to answer the questions that are asked of them, not interrupt each other, justify arguments that are based on obvious falsehoods etc.
How big of a positive impact do you guys think that this would have on society?
My initial thoughts are that it would be huge. It would lead to better politicians, which would be a high level of action. The positive effects would trickle down into many aspects of our society.
The question then becomes, "can we make this happen?". I don't see a way right now, but the idea has enough upside to me that I keep it in the back of my mind in case I come up with a plausible way of implementing the change.
Thoughts?