Politeness is merely respect for one’s fellow man. If a situation requires a protocol that raises the bar a little higher, who cares? It is humane to be polite. It is an acknowledgment that you recognize value in others, and have the grace and refinement to express it.
There’s no glory in adding more coldness to the world. What does one prove by being rude? It is self indulgent to allow one’s own misery to bleed into the hearts around you. It speaks to a sense of personal alienation from a natural, intuitive harmony we all share when our emotional issues don’t clutter it up.
There will always be the bulls in the china shop. They only draw attention to their clumsiness.
With all of the cruelty, violence and suffering in the world, being polite is almost a superpower. Its one we all possess, it takes little effort, and it has a way of having a dominoes effect that impacts a day in a positive way.
How could anyone have a problem with that?