Thanos gets fed up trying to court Death.
He knows he is destined for greatness but keeps failing!
He decides to fight for justice!
To begin his training he joins the Avengers after being given menial task to test his resolve and if he is scheming.
Who would dare to attack Earth now?
How many of Earth's villains give up? How many see the error of their ways and join the fight for justice?
Could Thanos' influence spread across the stars, reducing villainy to almost zero?