Aside from making money, the value of art is in developing and sharing ideas and emotions. The medium helps dictate the sort of thought and emotion that can be explored, so the medium itself helps develop new ways of thinking of things. And this is valuable because it's important to grow and learn and broaden our perspective to make us more savvy decision makers and action takers.
For instance, drawing in vectors makes me think differently than drawing in brush and ink. I become more methodical and analytical. Drawing in brush and ink is more intuitive and immediate. This vector portrait I just made actually comes out looking more soft and natural looking than my ink drawings do, even though the vector image is made completely of hard edge shapes and my ink drawings are made of organic hand made brush strokes. How ironic!