By "actual, intended" purpose, I do not mean original. I mean commonly agreed upon purpose, that almost all would agree is the true goal to strive for in a {criminal justice system, healthcare, etc}. I specified "current" to differentiate it between the current purpose, and a hopeful future purpose, not a past one. I don't mean to imply that these systems have been "corrupted" from a virtuous initial state (because like you say, they have some dark origins). Though they certainly are corrupt.