The only reason that the Emperor probably did not put restriction on him is because he probably knows that if Santiago were ever to rebel against the Empire, no one would follow him other than his soldiers.
He is suited to be a great general that inspires dread and fear. But he is not good at being a ruler.
Because of his deed
Everyone understood war. But the title of Butcher and madman is not a good reputation to pass down.
His descendants would have to live with this history.
Regardless of how much his descendant would try people would brand them as the descendant of a butcher.
And not the kind of butcher that chop pork and cows. It is human butcher.
Nobody other than the sick people in the head would like a person who kills all the time.
Out of the Twelve Generals, all the other ten were celebrated and even their subordinates live a good life
Thinking about it makes him sigh