Why is etiquette important?

Etiquette is the practice of putting others first before yourself. It's the act of denying self and giving others preference. Etiquette says "I care more about not offending you than I care about going about my own way." Etiquette acted out is manners. Manners are every day ways to act selflessly. Etiquette is the discipline by which we keep selfishness in check. It's a small way to sacrifice for others.

Christ was the best example of etiquette and manners.