In most cultures, there’s an emphasis on respecting someone’s body once they’ve passed. You don’t want to do to much damage to it, post-mortem and you want it buried as intact as possible. For us regular joes, that’s usually not a problem. For famous historical figures, however, it’s big deal.
If you’re famous, then burial isn’t always permanent for you. There are countless stories of bodies of famous historical folk being dug up, rearranged, stolen, and have parts go missing for collectors. It’s pretty fucking creepy, to be honest.
Gonna have myself welded into my coffin, and buried under concrete, just to be safe. After I’m famous, of course.