It was Joseph who set the precedent for Mega Tombs and Monuments for Pharaohs by burying Netjerikhet in a grain silo and stacking mastabas on top of it.
Joseph upsized the Mastaba to a Pyramid when he buried his pharaoh in a grain silo. He set the precedent for the pharaohs that followed. Few were able to surpass the solid limestone pyramid that Joseph-Imhotep erected. It was to become the gold standard for the burial of pharaohs in future dynasties.