I think the problem in your understanding arises from either the fact that you think total hegemony is possible for any single country and thus they can enforce fairness, or the fact that you subscribe to the idea of a global world. Other countries aren't global, other countries are: Me first.
You need to read up on Reciprocal Altruism, and the story of the Suckers and the Cheaters.
That is why other countries must be opened, and made to be global.