Not Getting The Concept

I've never really understood contrarians -- those who absolutely refuse to go along with what everyone else is doing because of principle, no matter the consequences. They'll turn an easily resolved dispute into an ongoing problem that causes lifetime animosity because they're standing for "what they believe in". I'm not talking about important issues here -- I'm talking about the simple things that everyone does everyday. They'll confront someone about a small annoyance that everyone else lets slide, even if it will likely make the person they're confronting hold a lifelong grudge.

Here's an example (via Drudge Report): A substitute teacher in Pennsylvania was assigned to read "A Visit From St. Nicholas" to a 1st grade class. Since she didn't believe in Santa Claus, she decided that it would be against her principles to simply read the story -- she decided that she had to let the children know that Santa Claus didn't exist:

"On Monday night, Jamey started to recite Moore’s famous poem while sitting on a couch next to a freshly cut tree, trimmed in tinsel and topped with a golden star: “’Twas the night before Christmas, and all through the house. No creatures stirred.”
"She paused, looked up, and said that’s when the teacher interjected, just a few lines before the verse that announces the arrival of “a miniature sleigh and eight tiny reindeer.”
“The teacher stopped reading and told us no one comes down the chimney,” Jamey said, curling into a ball on the couch, bracing her chin on her knees, her voice shrinking away like melting ice cream. “She said our parents buy the presents, not Santa.”

In what I think was an appropriate response, Jamey's mother sent the substitute teacher a copy of this famous newpaper column:

"DEAR EDITOR: I am 8 years old.
"Some of my little friends say there is no Santa Claus.
"Papa says, 'If you see it in THE SUN it's so.'
"Please tell me the truth; is there a Santa Claus?
"VIRGINIA O'HANLON.
"115 WEST NINETY-FIFTH STREET.

"VIRGINIA, your little friends are wrong. They have been affected by the skepticism of a skeptical age. They do not believe except [what] they see. They think that nothing can be which is not comprehensible by their little minds. All minds, Virginia, whether they be men's or children's, are little. In this great universe of ours man is a mere insect, an ant, in his intellect, as compared with the boundless world about him, as measure by the intelligence capable of grasping the whole of truth and knowledge.
"Yes, VIRGINIA, there is a Santa Claus. He exists certainly as love and generosity and devotion exist, and you know that they abound and give to your life its highest beauty and joy. Alas! How dreary would be the world if there were no Santa Claus! It would be as dreary as if there were no VIRGINIAS. There would be no childlike faith then, no poetry, no romance to make tolerable this existence. We should have no enjoyment, except in sense and sight. The eternal light which childhood fills the world would be extinguished.
"Not believe in Santa Claus! You might as well not believe in fairies! You might get your papa to hire men to watch in all the chimneys on Christmas Eve to catch Santa Claus, but even if they did not see Santa Claus coming down, what would that prove? Nobody sees Santa Claus, but that is no sign that there is no Santa Claus. The most real things in the world are those that neither children nor men can see. Did you ever see fairies dancing on the lawn? Of course not, but that's no proof that they are not there. Nobody can conceive or imagine all the wonders there are unseen and unseeable in the world.
"You tear apart the baby's rattle and see what makes the noise inside, but there is a veil covering the unseen world which not the strongest man, nor even the united strength of all the strongest man that ever lived, could tear apart. Only faith, fancy, poetry, love, romance can push aside that curtain and view and picture the supernal beauty and glory beyond. Is it all real? Ah, VIRGINIA, in all this world there is nothing else real and abiding. No Santa Claus! Thank GOD! He lives, and he lives forever. A thousand years from now, nay, ten times ten thousand years from now, he will continue to make glad the heart of childhood."