Possible, but probably not something they considered with all the other stuff they had to do for release. I'm sure they'll patch it in, but in the meantime, rules are rules.
If you want an inflated and broken economy, sure. Just look at WoW, even low level items were being sold for 10x what they were actually worth, and it got progressively worse as time went on.
You will not ever be able to control the economy in an MMO. It is a living thing and banning people for making too much money is only going to alienate some of your player base. Planned economies don't work in real life and they don't work in MMOs.