Are you sure you have the right advisor? If you are so concerned that his interests may be that divergent from your own, it might be better to switch advisors than to continue with this one. Ideally, you want an advisor who already has tenure and looks at you like a son or daughter, and will advocate for you as your career progresses. If that's not the vibe you are getting from your advisor, then look around and see if there's someone whose personality and style of work better suits you. There will be costs to switching advisors, but they may not be as big as the costs of continuing with a mismatch between advisor and student for more than a year.