Not at all. As the two of you develop a relationship of trust and loyalty, it goes without saying that the person you are teaching will take an interest in whatever products or services you offer - IF it is something that will benefit his or her own business. That is where the integrity comes in for the mentor. Do NOT go into a mentoring situation with the goal of cramming everything you sell down the throat of your student. In fact, you'll probably lose your student if you do.
MOST people are smart enough to see through even the most carefully woven sales pitch.
Keep your student's best interest at heart above all things, and the benefits to both of you will flow naturally. As your student learns, he, too will have valuable resources to offer you and your business. The absolute best attitude to take on as you go into a mentoring situation is to be ready to give, with NO strings attached. So, once again, whether you are a newbie or an expert, you can benefit greatly from a mentoring situation. If you need a mentor, and don't know where to start looking, please feel free to contact Mike or me.