what does the master horse tell about the character leader among the yahoos to the gulliver

From the text:

"He had heard, indeed, some curious Houyhnhnms observe, that in most herds

there was a sort of ruling Yahoo (as among us there is generally some leading or principal stag in a park), who was always more deformed in body, and mischievous in disposition, than any of the rest; that this leader had usually a favourite as like himself as he could get, whose employment was to lick his master’s feet and posteriors, and drive the female Yahoos to his kennel; for

which he was now and then rewarded with a piece of ass’s flesh. This favourite is hated by the whole herd, and therefore, to protect himself, keeps always near

the person of his leader. He usually continues in office till a worse can be found; but the very moment he is discarded, his successor, at the head of all the Yahoos in that district, young and old, male and female, come in a body, and discharge their excrements upon him from head to foot. But how far this might be applicable to our courts, and favourites, and ministers of state, my master said I could best determine.”