Group Discussion are often done for any job. Because it not only examines your knowledge on the given subject but also tests your confidence, patience, leadership and teamwork qualities. Group Discipline Your performance is like the prediction of your potential employer in your professional life in the eyes of your performance.
Agree that you are sitting for a GD because you want a job and it is applicable to the whole group. But group discussions are not organized to check your competitiveness. They want to see how you behave in the group and talk. You have to pay attention to yourself, but not by anyone.