I feel little desire to go to the corrupted lands since the loot is not worth it. But I'm already saturated with getting behind resources.
Why not join the useful to the pleasant?
With elementals of several resourse we would have a greater variety of mobs and he could drop the resources as loot.
Think of an element of iron that drops iron (the higher the level the greater the quantity) a fire elemental that drops coal, a copper that drops covers a poison that drops wood or seeds and so on.