Yes. We are all human beings with fallicies and emotional hangups and problems, etc. However, anyone who goes into a high profile position knows in advance they'll become a role model so should they try to live up to that? It's what they wanted so... YES! They need to live up to it because our youth do look up to them!
Edit: I answered your question in a manner which befits the situation as it really is. Sports figures, movie stars, high profile individuals become role models! It's a fact of life!