He has a job to do.  We may find it distasteful but we're a bit on the squeamish side.  He was once a powerful mage.  However, since they removed him from the guild, he's been wandering and no-one has any work for him. So, he's a bone-collector.  I asked him how he feels since he's lost his powerful position. He told me my greatest lesson to date.  "Son, you have to realize that, when you have a job to do, you do it as well as you can.  Don't worry about what other's think.  Don't worry about how it looks.  Someone is depending on you.  You can't let them down.  You can't let yourself down."  He gave that weird smile of his as he went off and collected more skulls.