I am sick for a

I am sick for a few days, and Will Warren cranks out some more gems at Unremitting Verse. Guess who he is talking about here:

My legacy needs tending, so I travel round the world:
The banner of philanthropy I always fly unfurled.
I teach my people history they really ought to know,
While guiding foreign policy in ways it ought to go.
I gaze into the future-I’m a quite astounding seer;
I’ve a sweet and even temper that is quite without a peer.
I love my fellow creatures-I do all the good I can-
Yet everybody says I’m such a disagreeable man!
And I can’t think why!