Design is not about making things look nice

Design is a process of finding solutions, and it starts before the problem is clearly defined and understood. However, many people identify design only with the aesthetic aspect of an object. They expect designers to come at the end of the process to make an existing product look good with few cosmetic adjustments. Although aesthetics definitely contribute to the user experience, that is just one component, and it won't help to fix the big usability issues in your product if those already exist.

You need to make sure that you are involved in a project from the very beginning. Emphasize in your team the need to understand the problem well before jumping into a solution in cases where they are already considering a predefined path of action. If you arrived late in the process, it is still useful to present alternative solutions. This will illustrate how design can be more valuable at the beginning of the process the next time.