"Exploiting the elements for profit"?
Seriously?
These are the elements were're talking about, not some stupid jungle trolls. They don't bend to one's will, rather, they assist those they deem worthy to call to them.
Only one thing drives the Goblin race: greed.
Almost all the other class combinations make some sense (with the exception of Worgen Druids, but that's for another topic).
I don't know, maybe it's because I'm FINALLY getting around to reading "Rise of the Horde", but the elements don't seem the type to allow themselves to be manipulated for profit...
Or maybe I'm wrong. Perhaps there's been some new information released that I missed regarding the Goblin Shaman. If I did miss something, please let me know.
TLDR: