Ok, except for one, thing, I guess now is the appropriate time time ask yourself, to think this thorugh. To keep things logical, the resources are not just lying around everywhere, and ofcourse I mean the non-ambient resources(lumber, stone, fish etc.) The value resources, like copper, corn and horses.
Not only, is it a requirment to domesticate, mine or harvest a resource, taxing and waging payment initialized more directly towards the compilation of the ecconomy is a turn to turn responsibility. Bascially keeping the empire intact on it's own was no dire challenge for the king. MAking war and ever expanding to keep the nation growing and becomming stronger was what caused real establishment in empires through time. Domestic and international,
occurances. Plague and riot, civil unrest and all out war. THings like that pop up even when all seem to be well.
Crossing contact with lesser races alone may bare a deathbed for eachothers people due to simple hygene differences. A ratio factor of diplomacy compared to total time of existing relations with people over time creates a sooner or latter reached vaccination of foreign sickness.
Exploring jungles could yeild the possibility of some serious epidemic, someone just suggested that. Wealth does not neccesarily mean stable. For a fool with a million dollars may be quick to make another fool rich.