Ruthless dictators put to death?

Julius Caesar was the first dictator for life - in essence, he invented the job description followed by so many of the others.

This is the advantage of having a successor who is even more of a ruthless, paranoid, bloodthirsty tyrant – history tends to judge you more kindly in retrospect. But there is no doubt that Lenin was utterly ruthless in his efforts to seize power and hold it in Russia. A brief excerpt from his "The Lessons of the Moscow Uprising”:

Tojo wasn’t a dictator, regardless. He had no near enough personal power.

He should be by anyone who has read even a little of the man.

well, that would exclude me, hence the question.