Vulcan Logician wrote:
^Hence her promotion to Admiral. As is well known in Starfleet rank posterity, before one is promoted to Admiral he/she must pledge his/her willingness to cooperate with the dark side. Name one Starfleet Admiral who wasn't morally ambiguous.
Yes, you're right there. But there's an exception to every rule. Besides, it's the next gen era Admirals that are truly morally defunct. Though in my TOS recollection there were a few "bad apple" Admirals as well. Maybe Starfleet was just beginning to implement its "evil Admiral" protocols and by the time TNG hit, it was standard procedure.
(I think I'm due for a TOS rewatch)