Bitcoin and the crypto markets has its own economy, and I don't think it affects the outside of its sphere that much seeing that what money goes in on bitcoin, goes out in fiat at the end of the day. Perhaps if one country adopts bitcoin as a side-currency that can co-exist with their own fiat, then it will somehow provide some impact on the domestic economy of that country, but til then the effect is very minimal and exclusive to the crypto markets.
If a huge percentage of the merchants around the world starts sending and accepting bitcoin, we might see some significant impact given that bitcoin is excellent at transnational payments/transactions. Revenues and such in bitcoin and crypto would also be taxed, so there's that as well.