Bad aikidoka? Who is any of us to judge that kind of worth?
On the other hand, is this a smart or useful way to think about training? I've said this before - I maintain that any martial art is a heavily ritualized and abstracted form of fighting, and for that matter, it's usually based on a mutually consensual fight in which the partners are squaring off at eachother.
If I ever need to face off and 'duel' anyone, well... I'll thank my lucky stars that I can unleash my martial arts prowess. (Let me add to that - I also will know exactly what to do if some scofflaw actually grabs my wrist) But to think that I am learning practical, tactical self-defense skills... that would infect me with the kind of false confidence that could really get me hurt, or at least in trouble.
I realize that this is an oft-cited website here on the forum, but why reinvent the wheel?
Peace (and a strong pair of running legs to ensure it),