Your interviewer is trying to gauge your confidence and ambition. Working on commission is not for everyone. While various roles at Fidelity are paid a base salary, most have the opportunity to earn additional compensation. "In addition to base pay, representatives can be eligible to receive Variable compensation based on one or more factors for a particular role. Or, annual bonus, a percentage of base salary, determined through a manager assessment which takes into consideration the representative's performance related to client and organizational business objectives."