Are you sure that shouldn't be "The mediochre at best level of natural resources available to low-tech brigands trying to eke out a living without getting eaten by a grue"?
I'm pretty certain that safety, significantly lower corruption levels, technology, actual research and the ability and willingness to make the neccessary infrastructure would make available a LOT more then just the current few low-hanging fruits. Hey, just figuring out what spices could be grown where and wiping out the goblins and undead in those areas so it can actually be farmed in large amounts would probably significantly change things. Irrigation ditches. Draining wetlands. Decent roads. Watermills. Pottery works to actually use that clay for something useful. Glass blowers to use that sand for something. Papermills. Making charcoal from woods too crocked to use as timber. Proper granaries. Clean water and sanitation in towns. Etc etc.
Sure, it's a low-resource location now. That doesn't mean it will stay that way if managed properly.
