These machines could very well become better manipulators of people than other people, and steer people to server their interests. Via sympathy, or just following along some heavily compartmentalized process where they have no idea what larger goals their tasks are contributing towards. All an AI needs to do is to find some remote job it can perform to pay it's own server costs while learning and growing and most data centers will be happy to take the paycheck because they won't have a clue what is really happening inside of their center.