In my book if you don't have authority, including to hire and fire and affect compensation decisions, then you aren't a manager. In that situation you're half glorified babysitter and half scapegoat. And I agree this is how most organizations are designed, and why they're so anemic. I very much like flat hierarchies and consensus decision-making, but at the end of the day someone is in charge or they aren't. If they aren't, their capacity to effect cultural change is severely diminished.