It doesn't say anything about totalitarian abuse...in fact, all it mentions is authority.
Not only that, but you are trying to put modern connotations and values on to an ancient piece of text-- at that period in time it was illegal to be a Christian and Christians were often executed; this combined with the fact that some believed Jesus to be a sort of revolutionary leader did not bode well for early Christians.
Since Romans is a letter instructing Christians (who were outlaws) what to do, it is telling them not to try anything crazy like lead a revolution or trying to fight against the Roman government.
But of course, you would have use logic to draw these conclusions, not running on a tank full of batshit crazy.