The ideals you reference are vague. Do you mean Democracy? Surely you don't think hierarchical/technocratic institutions legitimized in the use of force is a necessary arm of Democracy or Liberty?
The idea that any of these institutions commit any morals good is hilarious. There are people, and there is power. Some people commit acts of moral good with power (Some Police, Most Firefighters, Most Medics, Some Teachers, Some Doctors, Some Lawyers, etc..) but many abuse that power to dangerous levels.
But sure. Let's assume the people at the absolute top fight for our interests. I would much rather have a discussion on power/authority, and what the absolute minimum is we need to function.