Visual aesthetics is about optimizing not about fundamentally solving business problems.
Of course you need something that is not completely impossible to look at but obviously the world is filled with less than pleasing visual solutions on very successful businesses.
If you are dealing with designers as customers you obviously need to prioritize the visual aspect. And visual design can be used in saturated markets to become the preffered choice but it can also work against you.
All businesses must figure out to what extent design is important for their success not just assume that it will help.