1.Eventually, but only after a solid liquid Bitcoin market has established itself in the west and Bitcoin stabilises to a price and market volume level that serves to greatly reduce it's volatility to the extent that Bitcoin is as good as the USD as a form of payment that can be accepted all over the world.

2.When that happens, and the governments inevitably fail to crack down on the black market, what is to prevent Bitcoin from eroding the foundations of any economy that the worlds financial and military superpower starts pressing upon?

3.If you were wealthy Bolivian, Botswanan, or Burmese, and the US started pressuring your government with sanctions and started funding paramilitary groups to fight against the government, what would you want to do?

4.You would want to get your wealth into a form that is internationally accepted and is not dependent on the backing and credit rating of your government which would be getting increasingly pushed towards insolvency. Capital Flight via Bitcoin would help to accelerate this process.