"Even with a much beloved and beneficial ruler, if people didn't want that kind of order it would crumble no matter how much it built or the intentions of those in charge." Many of the spectacular wonders of D's world were built under that guy's rule, so much art and technology that was lost when the Nobility were overthrown. D didn't mourn the Nobility, but he did mourn the loss of all their art and culture and technology.

Not everything they'd made had been terrible.

"Something being 'best overall' is often used to excuse terrible injustices and crimes to preserve the safety and peace of mind of larger groups against the misfortune of one or a few. The tyranny of the masses."