The highest act of love is the giving of the best gift, and, if necessary, at the greatest cost, to the least deserving. That's what God did. At the loss of His Son's life to the totally undeserving, God gave the best gift - the display of the glory of Christ who is the image of God.
I struggled with that notion early in my career. 'I know this is funny but nobody is laughing. ' This thought occurred for years.