Isn't this illegal in most countries?

Not to mention mean?

Underlying problem needs to be address: Excessive and easy to obtain raw materials that have no value when crafted.

Most obvious and illogical example:
Oak Wood = 2,000 gil
Oak Lumber = 800gil

The only thing oak wood can become is oak lumber. So the minute you use your wood, you've lost money. As a Botanist/Carpenter, I chop up oak wood, sell it, then buy oak lumber. Saves me time and money, but is illogical ^.^;