Political violence is actually really important.

Here in Sweden, back in the 1400eds etc. the farmers often made war on the government whenever it did anything they didn't like. This had the long term consequence, that by the end of this era, self-owning farmers owned 50% of the land in Sweden, whereas in Denmark, which did not have this kind of violence, it was only 10%.

It's incredibly important to be feared and to engage in violence, so that you are in practice and can threaten your political opponents, and this remains true in a democracy.

It's important that powerful people know they can't trust that they will truly be protected by the laws if they do something which harms others-- that the veneer of civilization is thin and the masses dangerous. Otherwise you end up with very dangerous situations where people can get away with anything that's legal.