How exactly would that work? Say I am an executive of a factory in Iran weaving fancy carpets that I can't sell in the US or Germany due to trade sanctions. How exactly would Bitcoin help?
Another example - I'm an executive of Iranian Airlines, and western companies are banned from selling me repair parts. How would Bitcoin help me with the maintenance of the fleet?
I know this is the "speculation" board, but we should speculate based on reason and facts.
Weave carpet. Sell for bitcoins. Send carpet to buyer.
Send bitcoins to associate in country with airplane making parts, EG Germany. Associate transfers funds from bitcoins to Euros, buys parts. Associate transports parts to you.
There are lots of ways which bitcoins can be used to move capital around, you just have to be creative.