On the other hand I would not go as far as merging the countries together.
so the top 256 would be in one tournament, the next 256 in another, and so on.
I said 256 simply because I thought it would allow the greatest amount of competitive games in numerous tournaments.
No, it would (only user controlled teams) ranked 1-256, 257-528, 529-768, 769-1024, etc.
Back on the topic. The only solution offered so far is that either people in big communities should get their revenue increased dramatically..
I guess JosefKa's solution flew past you as well? ;)