Part of measuring your personality or individual character is testing your ability to establish and keep good relations with people. Aside from that, the employer also wants to check your interpersonal skills or how you effectively deal with people. It is utterly important that an employee knows not only how to build good connections but also keep the relationship with work colleagues in a healthy state. If at the early stage of the hiring process the interviewer does not see that quality in you, your chances of getting the job will not be so good