Hi again,
I relate to being a perfectionist! I am too, and try to conduct myself with integrity both in my job and relationships with people. Realising other do not is a rude shock! Then, once you get over the shock, you move to acceptance, and become a little more reserved and wary.
My school is not a good place to work at the moment, and that brings out every one's worst traits. I keep my head down, do my job, and know who I can trust.
We do tend to expect from others what we expect from ourselves. Sadly, the world doesn't work that way.
When I was in my 20's, I thought it should! Now I'm in my 40's, I accept it doesn't.
Good luck to you