How much is spent protecting the fiat currency system? All those guns and drones... If bitcoins are ever worth $1M each, it means people will be wasting less energy on fiat.
People will still get guns to protect their usb drives with the copy of the pkey , get electric fences for their mining equipment.
So the cost will just go back from the government to the people

I see an exponential raise in number of guard dogs the coming years.