Machiavellianism In 'Much Ado About Nothing'

Someone who is machiavellian exploits people's weaknesses for their own benefit and doesn’t regard people's well being over there own. In the play Much Ado About Nothing there are multiple machiavellian characters. But who is the most machiavellian? The two people competing for this title are Don John and Borachio. Although Borachio does have qualities of machiavellianism he is inferrerior when compared to Don Johns deceitful behaviour.
First off, Don John exploits the weaknesses of others in order to get revenge on his brother and his friends. For example, Don John uses Claudios gulliabillity against him by fooling him into believing Hero is unfaithful. The evidence that shows that he turned Claudius gullibility against him is on Act 3 scene