Does Machiavelli suggest that rising to power through cruelty is always wrong?

Machiavelli suggests that attaining power through cruelty can be seen as well-used if it is carried out in one stab. The wicked deeds, if they are executed all at once, can be interpreted as necessary for self-preservation. Machiavelli argues: “We may add this note that when a prince takes a new state, he should calculate the sum of all the injuries he will have to do, and do them all at once, so as not to have to do new ones every day; simply by not repeating them, he will then be able to reassure people, and win them over to his side with benefits.”