When you write to sell, you want the focus to be on the product - not your smooth talking voice.
Imagine a salesperson using poetry to sell you something. Although it would be entertaining, it would not help sell the product.
Don't write to entertain. Don't write to make YOU sound better. Write for THEM.
The problem with academia is it is built around bolstering YOUR ego. In the real world, having a big ego is counterproductive to working your way up the ladder. It's like having a broken leg in a marathon.
Don't believe me? Just look at how much trouble people with degrees are having. They can't find jobs. They don't have social skills. They have big egos, but can't make money.
And yes, I have a degree. I have a piece of paper that I can tell people I have. My clients are only mildly interested in the fact that I have one.