The members of the servant class in this story suffer tragic, unspeakable calamities, sometimes at the hands of our fine hero, and yet the novel seems to expect the reader to reserve her sympathies for the "wronged" privileged child.
Hosseini is simply some guy who feels guilty about having escaped what so many of his fellow countrymen couldn’t, and he makes up for it in fantasy in a million ways: accepting his fallen father, marrying an "unsuitable" woman, listening to a voice from the past, saving the son of his friend he watched being raped decades before, stomaching the live stoning of a burka-clad woman.
This is not true "Literature"