I think Bitcoin can and will certainly become the world central currency. Sure, governments are a huge factor in hindering that from coming true but I believe a state of balance between Bitcoin and governments will be put forward since Bitcoin is irresistible.
I know people don't like USD in dominating the world currency and the inflation followed, sometimes I feel bad about that, too. the only weapon available is Bitcoin. if all people in the globe reach a consensus on Bitcoin, then I'm sure governments have to accept and adapt to Bitcoin.
Satoshi gave us the chance and we must seize on it to end the current system which is unfair and wild. we need to support Bitcoin and make it a consensus.