I think that depends on the instructor. My sensei had (and still has) a lot of influence on the local community. Martial arts taught me how to strive for excellence: by accepting constructive criticism from those who have greater knowledge, using friendly competition as motivation to improve, etc. I think the ability to take criticism and the desire to improve oneself are extremely important for pursuing rationality as well, and they're not often taught well in a traditional "Western" setting. In a dojo, where one can experience immediate physical applications of the principles, such values are more likely to sink into a person's mind.