That time has passed. The current mode of power cannot be altered via beheadings like a sovereign power could. There will never be another guillotine style revolution in the west, and the reasons for that are buried in the French and American revolutions.
This! We know how power shifts nowadays - hostile takeovers. A business model that the established oligarchy cannot defend against. Buy them up, shut them down, strip their assets, lay off the staff and move on. Aggressive, disruptive business models bombarding the defenceless in a theatre of abstract wealth distribution. Take all the assets, you get the governments and the military thrown in as a job lot.
Open Source is coming. Plutocracy will be annihilated. If we play it right, very little blood will be spilled. All the power, financial, governmental and military is always up for grabs. All you need is a new kind of hand that's better at grabbing.