you would not be considered a non-traditional applicant, and oddly enough, the past two info sessions i've gone to, they've stopped calling teachers non-traditional applicants as well, they see a lot of these guys. your full time work experience is the bucket you'll be analyzed in. what does work in your favor is that your lecturing gig is a great EC/personal interest and speaks about skills you possess outside of work and leadership. while i don't see adcomm buying an agrument from you if you try to paint yourself as a teacher, they could possibly be impressed by your achievements and anecdotes from teaching as your EC.