As if ad hoc working groups can't be taken over by assholes.
The government is HOW we do mutual aid, traditionally. But people have to do the work to run it, and when you put malevolent people in charge of running things, they abuse that power. It doesn't matter if you call the thing they're in charge of "government" or "ad hoc working group" or "charity board." The point is to keep bad actors away from the systems we create to help each other.