I gave you the answer about ethalon. I can't state it any clearer than I already did. So I'm copying the text from my previous post:When will you realise that there is no such thing as "tile based true fair". If I want to, I can get all my goods from doing recurring missions. Any idea how much tiles that is?
Tile based true fair system is like an ethalon meter (it can work in a very limited and controlled environment) but still it's used to compare with the all other length counter all over the world. Same for the calculation. It is created on the base data that can't be changed. Some people can use GBs to produce unrefined goods, other will not. Some will trade with profit. Other get them some from GE etc.
But still ethalon is counted based on the full chain of buildings. The bigger the chain - the more expencive is the goods - no matter how you obtained them.