It's callous to be dismissive of other people's suffering.
Jane suffers from a disease and talks about it at the doctor's office.
Jane wants to talk to the other patients.
Jane waits and listens to the other patients' problems as well.
Jane talks about her suffering, but she can't be bothered to listen to OTHERS suffering.
Jane learns a lot of things about the other patients in the waiting room.
People in the office quickly learn not to like Jane much.