Also, it's the difference between people who are hungry for power on their own and people who seek to limit personal freedom and devolve power to the state for

Also, it's the difference between people who are hungry for power on their own and people who seek to limit personal freedom and devolve power to the state for everyone's "own good". The Mussolini/Stalin route isn't the only way to destroy freedom, it can just as easily happen at the hands of less flamboyant folks believing their acting in everyone's best interests. It's not the risk of Voldemort taking over, it's the risk of Dolores Umbridge doing so.