The wrapping and preservation process is a meticulous craft in itself, and required practitioners to work quickly under time pressure; bodily decomposition in the hot climate was swift.
Note the symmetry in the sarcophagus. The patterning was accomplished with rare and expensive inks and dyes; wastage was to be kept at a minimum. Hieroglyphic scribes would hone their craft for years, and were selected for their persistence and attention to detail.
The entire process revolved around preserving the social fabric in the afterlife. Pharaohs and nobles were buried with their slaves, belongings pertaining to their work, recreation, and even eating. Ancient Egypt was a place whose culture was rigidly adhered to for thousands of years, but evolved to the point of refinement.
It's difficult to say, but given the society's placement close to the 'Cholericus' proposed in the NPA model, Ancient Egypt may be among the world's first Balanced habitancies, where all three traits and NPA personages appear in quantity.
Quick question for AMB: is there a way to assign a size to linked images with Boardhost's HTML? I ask because I wasn't able to get the image any smaller than the nose of your average Great Sphinx.