Even if you don't feel ready to volunteer, you're ready. There's so many different ways you can get involved in AAOS whether it be through the med student forum, the resident forum, or as an attending. Jump in, volunteer, and you'll discover a lot of things about yourself, both from an orthopaedic surgeon's standpoint as well as a leadership standpoint that'll surprise you.
I think all of us have a duty to get back in some way to make our profession better for our practices and for our patients. It's one of the most rewarding experiences you ever had to be able to volunteer to meet folks from different areas of the country, different specialties, different interest groups. It broadens your own horizons, but it helps you to view issues that you face on a day-to-day basis.