Why would smart people care about denim vs. trousers?
Let competitors wear pajamas- it makes no difference.
More generally, appearances are important because they are clear signs of attention and care. Something worth our respect is worth dressing up for, and a collective dressing up reinforces the importance and elevation of a given event or moment over other events or moments of lesser import.
its kinda cruel that you think homeless people who have maybe less than jeans should be given no respect, because they dont have a suit