Ok, that's clear. But you have to measure anything against USD until others measures the goods and merchanizes against it. So if you wanna BTC will be the ruler, you have to turn others to beleive that they sell and buy everything for the price fixed in BTC, not USD. But everybody beleive the state therefore in the USD or EUR. And why the people believe the state? Because the state has the power. And power means the enforcement capability. This provides that the economical, social, cultural base is stable. So you have to "force" the state to believe the BTC. Or you have to provide a proof that the pices fixed in BTC is stable. You have to give this proof for everybody. One by one and all over the World. BTW: including the enforcement organizations too. That organizations provides the power to the state. So if the vast majority of the enforcement organizations believe that they can spend they salary for BTC and the price of goods will be fixed in BTC, this means the state has only the power if the state owns the enforcement organization at stable base. And finally the BTC will be the only "tool" to use the power. On the other hand if there are no states the other side is anarchy.
Conclusion: if the BTC means the economical (ans social, cultural) power, than the BTC will be the ruler, undebately by anyone.
Is this -a bit long- explanation was good or confusing?