+1 to this. Why are there so many high ranked Sidewinder and Hauler pilots out there behaving like any other ship? Are they retired? Why are there so many Master and up Authority vessels on patrol? These should be saved for elite swat response teams, not plodding the beat.
For the same reason there are so many Master and up pirates running around - to provide a challenge for Master and up players.
Man, I can't imagine how incredibly boring the game would be if I couldn't find a steady supply of high-ranking opponents. Seriously, I watched my friend who had never seriously tried combat (he's an explorer who has been out of the bubble a very long time and wanted a break before he goes back out) go into a Low RES two days ago and wipe the floor with Competent and Novice AI in an Eagle with B thrusters, fixed pulse lasers, and a B distributor. He had A shields but they were never really tested.
High-ranking NPC's have to be there or we go right back to the mindless grind combat was before 2.1.
And in a galaxy loaded with Elite pirates, you can bet there's gonna be some Elite cops. Think of them as the 3302 equivalent of Texas Rangers (for whom the phrase, "one riot, one Ranger" is legend).