Right, Britain and France leaned on their allies and colonies to supply war materiel. Russia and China depended on their vast deposits of coal and iron to wage their war. Germany and Japan pushed out to secure whatever nearby resources they could use to fuel further expansion. So, make autocracy feel the pinch. Give them a reason to covet more land, conquer cities and lebensraum the tiles necessary to fuel their strategic needs. Order gets some sort of secure, consistent strategic bonus, and freedom has their bonus resources tied to diplomacy.