Noreen is a new manager at a logistics company. As part of her job, she attends weekly senior management meetings. At these meetings, some of the other managers, who've been with the company for a long time, make fun of the junior employees. No one stops the managers from making these comments. One day, Noreen decides to say something negative about one of her direct reports. The other managers laugh loudly, and Noreen feels like she's been accepted by the senior management team.

Which of the social influences has Noreen displayed and why? If she had decided to act ethically and not joined in making negative comments, what psychology concept could she have displayed instead?