[Mithalwen]

I think Imrahil might qualify because he seems incorruptable and unafraid. i
In all things that we see of him provides an example of the leadership and indeep with regard to Faramir the paternal care Denethor is unable to give because of his despair. He has no inclination to seize power for himself but acknowledges seemingly instinctively Aragorn for who he is and acts accordingly. He is his own man and yet maintains respect for the appointed order. You cannot imagine him aver agreeing to be suzerain of a thrall state as per the offfer made at the parley.

He has wisdom and wit and maybe, as in some more than others of the same lineage the blood of Numenor ran truer, maybe he has more than his entitlement of Elvish longsight.