Bitcoin will help these countries to overcome their financial crisis and also help build a strong economy in those countries. In central African countries like Kenya, Zimbabwe etc. benefit from bitcoin through Bitpesa Winks, It is true that the current Bitcoin system is deflation, but that does not mean it can not disrupt the economy. If enough economic money (% wise) goes into Bitcoin, you can be sure the economy will suffer, unless they start receiving Bitcoin as a national tender. We do not want the whole world to use Bitcoin, not at least simultaneously which will lead to economic collapse around the world.