[Endoperez]

Caelum needs high dominions to get money (cold scale down & order/port/whatever up), not the other way up. Also you don't need to use that much money for temples then, and you are more restistant to the lategame attacks (namely Ghost Riders) that were said to be too powerful as they could raid all your temples outside castles.

Most nations can do with less, but Abysia and Caelum want high dominion as their income largely depends on right temperature.