How many times do I have to say that body and souls are different? We respect souls, they're people. They have lives and stories and it's not our business to bother them.

[Except for the part where she bothered Walter constantly when he didn't talk to her. And wouldn't let him just rest in peace even when she wasn't using his body.]

Bodies, on the other hand, are property. It's fair game to take a body that doesn't belong to anyone else, because otherwise it's simply going to waste.