No one, but his goals, and the way be went about achieving them were still completely self centered and shitty. Why are you so bent on a completely irredeemable asshole being admirable? Are you an ethical egoist or something?
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He was until he let his own ambition get the better or him (like it does so many evil characters in both fiction and RL). "Oh hey! I know we're only like a few months away from total victory here, but I just heard about this sweet staff that will making me way more powerful, so I am just going to go ahead and take half the army with me without telling anyone and leave the rest to get shit on Kthanxbye!"