I will never understand how anyone can think (because people are evil, blood-thirsty savages) that putting one group of evil, blood-thirsty savages in charge of all the other evil, blood-thirsty savages will do anything but magnify & amplify evil, blood-thirsty savagery.
Maybe the residents/occupants of Dresden, Nagasaki & Hiroshima, Aushwitz and the "Gulag Archipelago" are to say. If they could. To name just a few millions.
History does, for one thing - to wit, the massive misery, suffering, death & destruction for which those people "in control of the institution" have demonstrably been responsible.
Peaceful, productive people tend not to seek power over others. They're too busy doing other usefully non-violent things &/or haven't the interest or temperament.
Sociopaths & parasites, on the other hand, have no such compunctions. The institution of a monopoly on the use of force is catnip to such people.