What's the moral guidance and purpose of a tomb of someone who's mourning has passed for over 3 millennia and who has been forgotten due to time?
well, it's clear from the objects still being in the tombs when the raiders came to plunder that they dead did not take the items into the afterlife with them. This clearly shows they are not being used by the original owners.
This. Forgetting is the biggest crime. Anything in the other direction is atoning.