Excellent insights!  You make it clear that Jesus was calling his listeners to a fuller expression of God's grace than selective and literal interpretation.  To take the preaching of Jesus as laws laid out cafeteria style is to be like the servant who buried the talents the master had given.  The preaching of Jesus is much richer.  Taken in the fullness of an intensely personal love it inspires the cultivation of greater responsiveness to the Spirit within.  It is this cultivation -- this submission to the one who loves you and who asks simply that you love your neighbor as your self -- that brings the reign of God and the fulfillment of the law.  This is, after all, what Jesus was about: preaching the reign of God.  A merely literal interpretation, one that buries the power of love in favor of enforcement of law, too easily becomes stubborn adherence to law rather than its fulfillment.  Jesus hopes for better from those who purport to speak in his name.