Martial arts, by themselves, are worthless. Any conflict art can only gains particular value by what it protects and preserves. The really wonderful thing is that most often, the skills can protect and preserve without ever being applied in a physical manner. That they are present is sometimes enough. Even when they are brought to bear, arts of conflict can be applied in ways that are not physical. Being able to apply physical conflict skills to other realms doesn't seem like a huge leap to me, but for many people who practice various forms of budo, it seems like a huge leap.