His Tomb Was Not Meant for Him
Even though King Tut's tomb yielded a considerable amount of treasure, the operation was actually somewhat hurried by historical standards. Since the king passed away suddenly and at a young age, it was unlikely that a tomb befitting a king would be prepared. It was rumored that it was intended for a low noble or possibly as a subsidiary tomb because others, including Queen Nefertiti, received relatively lavish burials.
It took so little time to prepare his tomb that paint splatters from when King Tut lived there were still visible. It proves that even those who were considered to be gods on Earth were not really exempt from the social conventions of their period.