The price is often paid by their subordinates, and ultimately the business. I remember working under a pretty inarticulate "senior leader", and he'd send these 3-word barely understandable E-mails to his directs asking them to do something. There would be a frantic scramble of meetings and discussions trying to understand what it is he actually wanted us to do, with a lot of guesswork and arguing. Nobody wanted to tell the guy he was as understandable as a pigeon, so we usually just guessed. Sometimes guessing very wrong and wasting an enormous amount of resources.