People acting purely out of duty are strange, not authentic. How would you like it when a friend came to visit you in the hospital, because he felt it was his duty to do so, not because he was your friend pers's, I'd be pissed!
in order to relate to, and 'appreciate' people they have to act, or atleast come accross as authentic, that also means that there's a number of authentic bastards amongst us.
do some reading on the subject:
www.amazon.com search for philosophy authenticity, might open your eyes.