When I was younger stories that were told me by my mother put me to bed. She used it as a little treat for me. My mom was telling me about anything. How she and my father met, how she begged my grandmother to get a dog, how warm was the seawater when she went to a summer camp on the coast. Her stories were always something very personal to me. They were almost like little secrets between only me and her. I loved those moments!
But time flies, these moments go away, however, stories do not. They always help people to get closer to each other. When someone tells you a little something about his life you start to relate to this person way more.
And that is where I think it might be very useful in any field of study. It makes finding a client or convincing him to buy something from you way easier if he can relate to you. You can tell him anything just to keep the conversation going, or to make him feel comfortable like he is talking with his mom before going to bed. It is impossible without storytelling. That is why stories are very important and useful in any industry.