The worst of rulers
Aidh bin Amr (radi Allahu anhu) reported: I visited Ubaidullah bin Ziyad and said to him: “Dear son, I heard the Messenger of Allah (sal Allahu alaihi wa sallam) saying, ‘The worst of rulers are those who treat their subjects harshly. Beware, lest you should be one of them.’”
[Sahih Al-Bukhari and Muslim]
There is a typical, brutish sheep-herder who severely drives his flock and flogs them mercilessly. As a result of which the timid animals get upon one another.
In the Hadith, this word (Al-Hutaamatu) has been brought in for a tyrant ruler who subjects people to oppression and treats them unkindly. It implies a strong warning and intimidation to cruel rulers.
And Allah knows best!