So another pathway through the instrumentality question. . . . Dan Pink’s insistence was that by engaging the arts and an artistic activity in a self-conscious and dedicated way you could activate skills and sensitivities that would serve you well in the work world.
Another interesting TED talk that considers science and creativity. . . and is suggestive that (a) the arts do a very particular kind of brain-work and that (b) careful study of that process could lead to new information about how to stimulate innovation and problem-solving.