It is wise to bear in mind the near-universal taboo against failing to properly bury bodies. This is not only out of respect for the person, but fear of being haunted. This belief also applies to beasts. Hunters will perform a token funeral rite for their prey, burying a single bone.
This taboo includes taking posessions off a corpse. Even one who confronts a thief in their house and kills them will fear to recover their shells.
This state applies only to the recently dead. There is no fear in robbing the tomb of one dead for at least a century or so. Though woe to he who 'picks unripe fruit'.
It happened that the noted cat-burglar Edwina Tibbletibtub, when caught in the bell-tower of the Temple of the Crone, held on to the ancient and priceless bell as she died. Thus the relic was removed and buried with her in a secret place, until generations later when the temple was able to dig it back up and reinstall it (the event celebrated as the Return of the Bell).
Thus hirelings who are prepared to loot dead enemies, or tolerate others doing so, are rare. And they will always be desperate, unable to find other work, and will be wounded in body or mind. Yet they will still expect higher pay than normal hirelings. An aged cripple values their only life no less than a stout swordsman.