I've asked myself the same thing over and over again. I wonder if it's because people of afraid of the nicest people. They think there's something wrong if you're too nice or too caring. Or they just don't think it's possible. Or that they can't live up the standards. I honestly don't know but I doubt it's really a conscious decision when staying away from the nicest people, it's a decision some people don't even know they're making. But yes, it's sad. And unfair.
What do you think?