But it's only meaningful if you know the powers that be can be replaced with something better. About the last person I would trust to do the job was a revolutionary.
this is true. That's why the cops have adapted a strategy on street gangs to NOT arrest the head of he Gang.
Rather they control him. Once you get rid if the current leader a vacuum is created to fill that void. And since street gangs are brutally violent in nature you generally end up with a new leader who is worse than the last.
Over time, due to attrition, this will happen anyways. I think revolution and controlling the outcome by a democratic process is necessary from time to time.