Yes but the problem is, unless you are doing savage, you do not need it, so the demand is low. With that low demand, the items get undervalued till the point midcore are like why not so i can face roll crap? or whatever price is at that allows people buy then that normally wouldn't due to the undervalue due to lack of demand. Then another problem is supply. The leve system makes it too easy to level crafts, leaving a high supply and a low demand to make it worse. The complaint is not you can't make money, you depend on making money due to others not crafting the item. Because if too many people make said item with the low demand, prices would fall too low for crafting be worthwhile. This does happen in this game, and people stop making said item, and 24/7 crafters take advanage of that and sell it on the high end eventually. So an item that sells 70k today may sell for 10k tomorrow and 5 days later be 110k. Due to little motivation to craft, that leaves little want for few to keep crafting (People like me craft just because... and hording gil is fun to some people) That is another reason for high fluctuations.
I was not bringing RMT into this, but I would venture a guess even RMT values are low or sale active is low because you simply do not really use gil in this game, or really need to to do so, that is why crafter focus people make a ton of gil, because you do not need to buy much to sustain it or get to that point. I think you missed my point, put things simply. Being able to make gi/money does not mean it has a good encon, as I explained how a seemly good econ on the surface hides a lot of that ice berg underneath. I am riding the encon ship full steam ahead wondering when it will crash completely in that block of ice before people see troubles in a system like this.