Not that I'm inclined to agree with the war-as-a-business-model approach to economics, but there are a number of very significant differences between paying for a war against an opponent who can scarcely afford to retaliate and having your own country turned into a war zone. Even people who benefit from the former are unlikely to be in favor of the latter. Having a lot of the national currency of a pile of rubble is not a very good place to be in the grand scheme of things
