These games are usually on very long time scales. Playing the same game is the only way people can align for extremely long time scales. These long time scales make it so that people and organizations need to create proxy games. People create proxy games for long term or hard-to-measure games
For anybody who has played The Gathering, it’s analogous to different win conditions. Some decks are trying to reduce opponents life to zero, but then some decks are trying to deck their opponent.