The distinction between the two argument types is important since each serve a different purpose. The goal of a "power with" argument is for you and others to share opinions and to reach an understanding on the issue. The purpose of a "power over" argument is to persuade your audience to believe your opinions. An example of when a "power with" argument would be more effective is if I were a sports agent representing a free agent player. I would meet with the organization that expressed desire in wanting my player on their team. We would negotiate the contract length and the salary that the player would make. The organization and I would come to an understanding of a contract that would be beneficial to the player and the organization. An example
