Another reason is that the Holy Kingdom might have been bloated by this illusion of grandeur for so long, leading the nobles to truly believe they were of immense importance. Such an atmosphere was unique to the Holy Kingdom, and once outside, nobody gave a damn about this bunch. Fortunately, these people also harbored a 'Heaven ranks first, I rank second' mentality and considered other races inferior. Forget about establishing foreign relations; even when these other races entered the Holy Kingdom, the nobles couldn't stand sharing the same air with them.
"Don't bother with them, these folks have little skill but put on quite a show. If they weren't necessary, I'd have slaughtered them long ago," Gu Shanhai said with some resignation.
The commoners couldn't be counted on either because of the monopoly on knowledge. All the commoners were illiterate and had been tamed to be very honest, to the point where they dared not cross class lines.