I've had a couple of managers who either disliked reading and writing or were very bad at it. One, in particular, had a couple of us that he turned to for analyzing or creating all but the simplest of documents. I suspect he was dyslexic. He was subsequently promoted at least 2 times.
I’ve had bosses like that. They kiss up and kick down.
Eventually it was that kind of boss that drove me to go back to school and finish an engineering degree. I had several bosses who had college degrees but could barely write a full sentence. I knew that if they could get through college, I could at least do what they did, fall back to a basket weaving degree if I couldn’t make it through engineering.