What does Priam's perspective reveal about the fight between Hektor and Achilleus?

It reveals the code of honor they had to follow, Priam asking Achielles to return his son's body for proper funeral, it also reveals a more humane side on the participants, Priam kisses his son's killer's hand, a sign of deference and humility on his side and Achielles would only sooth his thristy with a kind act from Priam, now violence on Priam's side.