Xboxes are 5 years ago. And that is the hardware, what more a PC can do doesn't really matter.
Then you're clearly exagerating, especially if you think that having a script to focus on corpses is going to demand too much resources. Hell, it was even done for Oblivion.
If you go by the line "it's a waste of time or resources," then we'll eventually have nothing but a very static game with no new content.
Here's some videos showing the Xbox 360/PS3/PC capabilites in one. If they can handle this, they can definitely handle one script that keep track of corpses
http://www.youtube.com/watch?v=1Kvl31g77Z8
http://www.youtube.com/watch?v=-D9oINHI11E