The whole purpose of maintaining your power in government is to make sure that you stay in government. You stay in government by finding out who is liable to be against you. To do that, you try and put your finger into every single pie that is available to you.
The Guy Fawkes mask has now become a common brand and a convenient placard to use in protest against tyranny - and I'm happy with people using it; it seems quite unique, an icon of popular culture being used this way.
V is like a mythical situation. It's an allegory for what could happen. V has philosophies within it that actually warn against things like that happening.