So create an MMO game. Players could choose whether to be citizens of a country called Fanta, or a country called Coca Cola, or Sprite. If a country is winning, more of its products got commercialized or featured in the game. Like green pastures for sprites, red for Fanta, and Cola grass for Coca Cola.
Winning factions also gets more of its messages published in the game.
Winning factions also gets more of its messages published in the game.