All the industries mentioned have learned that while usability and style are both important, usability is what matters most. If you have an unusable product that has style, reliability, low cost, etc., then you have the equivalent of a car with great curb appeal that always seems to be parked at the curb with a "For Sale" sign in the window. If you have a usable product without these other qualities, people will buy and use it unless there is a competing product that is equally usable but gives better value.
This is like the much maligned book "Dress for Success"--It doesn't say that dressing right will make you a success, only that dressing wrong may well prevent you from getting the chance to succeed because you've blown your first impression. But the author freely admits that for more than casual interactions, the second impression is more important and long lasting and is not about your clothing. If you look good on first glance but can't deliver over the long term, you're toast.
A product needs to offer two things: value to the customer, and differentiation from competitors. Usability is often the most important factor in both--without it you have zero value and the wrong image.
Also, usability is not about brain-damaged users. A lot has to do with having to concentrate on the product, instead of the product helping you concentrate on what you're trying to do. A bad automobile design will cause you to crash because you're trying to figure out how to operate the vehicle (e.g., adjust the radio), instead of concentrating on navigating through traffic to your destination safely. This means you shouldn't need to devote much grey matter to using the product.