A critical angle I've appreciated is how novels deal with slavery and social hierarchy, topics often glossed over in heroic narratives.
They show the complex system of military slaves (mamluks), domestic servants, and the ethical debates surrounding the practice within an Islamic framework.
It doesn't shy away from the contradictions—a civilization that produced advanced legal concepts of justice also upheld a rigid social order.
This uncomfortable honesty makes the historical portrait more complete and morally engaging.