Those in authority become assured of their beliefs: "Since I am in power, it must be due to the quality of my thinking and dedication."
Unfortunately, when their patronizing, narrow-minded edicts meet resistance, they can only see the dissention as rebellion: "Can’t you see this is not only for your own good, but the good of all?"
Any response from below is inherently nonsensical, simply because it is from below: "If your thinking were correct, you would be in my role."
And yet, if the arguments do make sense (logic) then to maintain their role (identity) the authority must revert to bullying to maintain status (coercion). "Do it, or else."