Bitcoin is not meant to break the economy of any country but rather to help raise the economic status of a country as it gives the people financial freedom and independence. This financial freedom and independence is made possible through the decentralized nature of Bitcoin which grants the users the total control over their own transactions without any third party interruptions.
In my opinion, Bitcoin was created as a peer to peer payment tool based on network transparency so it is difficult to manipulate. If Bitcoin is used as a payment tool, I don't think it will disrupt the economy because a country must have its own currency and Bitcoin is only a complement to this digital age.