Today many countries accept bitcoin as a virtual currency, is it because bitcoin is so high that they think bitcoin can change the country's economy, or because the country has many bitcoin users already?
There is a chance that bitcoin could improve the economy of a certain country. For one, all the bitcoin earners living in that particular country would probably use their earnings from bitcoin to buy things within that country. Those things would surely have taxes. On that process, bitcoin is improving the economy of a certain country with the help of it's users.