This is a suggestion... so dont say anything about "This should be in Kingdoms".
Ok this is how I think it should work...
Lets look at the real world. Italy is a very small country (in comparison to America)... not alot of need for money or food and such. But now look at China... overpopulated, undergrossed, and underdeveloped. Because of their massive size they have economical and political 'depressons'. So why not have this in Graal?
Like Forest has like 6 people... Dustari has 60 something... so the larger nations should have a crippling effect on their economics and such X_x