Stress
This is a stressful job. You have to deal with giving bad news to people on a daily basis. That has to be a downer.
Your salary could get cut when your county's budget gets hacked up.
Also, if you screw up, you could put innocent people in prison or give away a dead person's remains to the wrong family (apparently it's been done, numerous times).
And you have to be locked in a room with dead bodies all day every day. That can't be too good for the average psyche.
