Driver? No. Heck, I hardly know any philosophers. But most of our big ideas were written down by a philosopher and then, decades later, read by to-be-important

Driver? No. Heck, I hardly know any philosophers. But most of our big ideas were written down by a philosopher and then, decades later, read by to-be-important people at the beginnings of a social movement. Social philosophy influences societal change, by providing ideas. Without philosophers, activists have to be more visionary than they already are, making them rarer. (Moral philosophy, not really, I'll agree with you.)