The reason that government is everywhere is that government wins. It's a Darwin thing. The reason that government wins is that a bigger ship is more seaworthy, and a big enough ship needs a thousand builders, and a thousand builders need an organizer to deal out paychecks, and sooner or later the organizer's paychecks become more important than the ship. The ship is still made, of course, and it crosses the world conquering savages for loot. But in the end, the organizer is a king, and we all swear the pledge of allegiance. The original reason for building the ship? Shit, no one remembers. Anyways, here we go. (Ever watch Cube?)
Bitcoin doesn't need to be legal to operate. And it's encroaching on the sort of grand scale project space that first gave governments their legitimacy. I think this is significant.