Every corporation needs both technical gurus AND strategic geniuses. An organization full of nothing but CEO-strivers would be non-functional. Who would do the work? Do some thought experiments about what it would be like for you to mostly concern yourself with people-management in a technical field versus mainly concerning yourself with the science/engineering aspect, but never being allowed to make the big strategic decisions. In the interview, just tell the truth, while keeping in mind that if you are applying for a managerial job but you answer that you want to be on a technical track, your resume is probably going to the bottom of the pile. Make sure your answer is a good fit to both you and the job for which you are interviewing.