Why Comp Theory?

I believe if we study a subject, we will understand more and so become better at it. If we study composition theories, we may become better teachers, and hopefully better writers. In all of art there is a theoretical side which one can study and become proficient. There are many painters who studied and their art is exquisite. There are also artists like Grandma Moses who have fumbled onto a unique method and they too are able to paint beautifully. The same with music. There is music theory and a basic undiscovered singer is able to stretch and develop as a singer as she studies and adds theory to talent.
Then there is writing. Emily Dickinson I believe did not study poetry and low and behold she has produced much poetry that has lasted for gnerations. I believe she read a lot but perhaps did not study theories of poetry. The author of to Kill a Mockingbird, possibly only wrote one novel in her life, but what a classic beautiful work of literature. Authors who study theories may get better, may be able to write more, in short may have more success. Experience also is a teacher. However, I am fairly sure I am not an Emily Dickenson or a Grandma Moses, and therefore I am seeking to study Composition Theory, so that I may understand, and grow and be able to write academic articles as well as other forms of writing.