That's not really true. In a Bitcoin economy, governments can still bail out all the losers they want with as many BTC they have.
Also don't forget that MtGox bailed out bitomat.
Bitcoin is a big step forward in money, but The Market is a lot bigger than just the currency that is used.
mtgox used their own money to bail bitomat out. they didnt create a bunch of coins out of nowhere.