Finding refuge in a foreign land, an exile can sometimes rise to the very heights of power. In the Egyptian royal court, Hadad's position reaches a peak of prestige and influence. Driven by his deep affection, Pharaoh arranges a highly exalted marriage for him, giving him the sister of the queen herself as a wife [רש״י, מצודת ציון].
This royal union cements Hadad's power and solidifies his place within the kingdom. His standing becomes so secure that his own son is eventually raised and educated directly inside Pharaoh's palace. The queen personally oversees the child's upbringing alongside the king's own children, treating him exactly like a royal prince in every respect [מלבי״ם, אברבנאל].
The extensive description of the immense honor and greatness Hadad secures in Egypt serves a specific purpose. It creates a sharp contrast with the events that follow. Despite acquiring such vast wealth and unparalleled royal status, Hadad ultimately chooses to walk away from it all, asking to leave Egypt and return to his homeland [מלבי״ם].