Both are inanimate objects and serve different functions. One purpose of a desk is to simply contain your computer, paperwork, and other stuff. Ninety percent of the value of a desk is aesthetic, while the value of an office chair is of great importance especially when it pertains to your health. Ergonomic chairs will aid your back while you are seated at your desk. It can even keep your shoulders, legs, and neck comfortable while you are working. If you sit at your desk for lengthy periods of time, an office chair is a very essential part of your working life.