I've been pontificating about it to myself for long enough to form it into that question. When I think of someone virulently MCS, the content is almost always their perception of others as lessers - NPCs, background characters, or fodder. They are the hero and they could cut through a horde of others and they're frustrated by rules and regulations that say they can't. But I might be so bold as to say that their problem isn't that they see themselves as special, but that they see themselves as exceptional.
The problem is that they're rude to service workers, upset when people step in front of their camera, or judge the choices of others (especially for the effect it has on you e.g. opining during a marriage ceremony). Therefore my thesis of special vs exceptional is that if you are filming yourself on a busy street but you don't obstruct people nor react to people walking through the shot, you're not hurting anyone. You can take up space, but you should be polite while doing it to be someone who cohabitates this one world. You can think yourself a person with a hidden demon within them who must prove themselves to be the best and be monstrously disappointed when you finish second all the while being a weird anime person, but cheating, misrepresenting yourself to others, or expecting others to help you is where you cross the line.
So all that being said, perhaps it's not a problem to think yourself in a unique position to solve a problem no one else has - perchance help people along the way. After all, no one else is you nor has anyone ever been nor will anyone ever be. The world is a collection of individuals. You can think you're cool, smart, mysterious, kind, forgiving, or hang your hat on some other piece of personal esteem and be a great friend, peer, and comrade. On a tangential note, I like how in prominent MMA promotions, after someone is declared the victor, the camera begins to focus on them and their celebration instead of zooming in on someone who is visibly very frustrated by their loss.
You neednt even wrap your brain around the boundless scale of everyone's genius in some aspect nor make yourself less by reminding yourself of it when you think highly of yourself - it is a lesson to learn if you're belittling others.
I'd really like your input and opinions on the matter.
“I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops.” ― Stephen Jay Gould, The Panda's Thumb: More Reflections in Natural History
I think we should work towards being special, it isn't something just born into you like the protagonist in so many fantasy novels. And remember that for every person who saw something special in you, that you could also keep an eye out for what's special in other people.