What truths about people and life in general are suggested by the story of Argos in The Odyssey?

If one is looking to how the story of Agamemnon and Argos
contrasts to Odysseus and Ithaca, there can be many truths revealed.  The first and most
elemental is that the homecoming of the warrior is not always a celebrated one.  Homer
was ahead of his time in suggesting that there is a certain level of trauma endured when
one goes off to fight in foreign lands and then comes home to a setting that is
uncertain.  The domestic discord that Agamemnon experiences reminds us that war carries
different emotional valences with it and some of these are not always positive or
redemptive.  Another truth that is suggested by the story of Argos is that while the
soldiers fight, life does progress in their absence.  Agamemnon's wife has taken a lover
in Agamemnon's absence.  Unlike Penelope who faithfully puts her life on hold for
Odysseus, Agamemnon's wife has continued with hers despite his absence, demonstrating
again how ahead of his time Homer was in recognizing that some soldiers fight two
battles.  The first is on the battlefield and the second is when they return from it in
trying to piece together their lives after the war.