Making Pure Mesos in MapleStory

My main issue is that MapleStory is essentially a country with two currencies that can't be freely exchanged with each other. As long as one of the currencies (NX) isn't generated from activities inside the country and provides benefits significant or greater than the one that is (mesos) it's going to be difficult to balance the economy. I guess you could think of things bought with NX as imports, sort of? idk.