What if there were valuable items that you could bury with a skeleton to increase the LP inherited, like the Egyptians did or some shit. What if you only inherited LP over a period of time, and having your corpse removed would cease to grant LP? What if graves could be dug up with a shovel and those items/skulls stolen? What if graves from high LP characters influenced the soil quality? What if the location grave relative to landmarks or quality of soil influenced the LP gain? What if robbing graves had a chance of that corpse haunting you? What if you could do a ritual to resurrect burried corpses with a loss of LP?
There is a lot of cool stuff that could be done with this