Your interviewer is curious about what kind of employee you are and what you uniquely have to offer. Do you consider yourself an experienced, stable, and reliable employee who performs consistently according to the job description and should be rewarded for tenure and seniority alone, or do you consider yourself an overachiever, who should be more handsomely rewarded, based on merit alone? Also, they are curious about what bias may influence your perspective. As they state on their website, "Our long-standing pay-for-performance philosophy differentiates awards based on individual and company performance, regardless of gender, race or any other protected classification." Share your views with the interviewer once you are fully familiarized with how their meritocracy is structured.