Without design thinking, the only sane response to a problem is to make a smaller, "safer" move. Smaller moves don't get you very far. They key is to let out the leash on imagination, but not take it off the leash. Imagination is the only path to innovation. It's a good example of something that humans do better than machines.
Design can also be used to invent strategic futures, make complex decisions, and craft a bold corporate vision. We need to move design up the ladder of influence.