Why should SALVATION FROM God’s wrath “demand” a DISPLAY OF God’s wrath in order to atone for sin?

Why should human salvation from God’s wrath somehow “demand” a display of God’s wrath?  Is God’s marvelous graciousness, then, only a by-product of His frightful wrathfulness?  How has such a counter-intuitive (not to add, perversely twisted) logic ever gained the favor and renown of orthodox theologians in Western traditions?  [5/28/10]  Here, the true Gospel is not the mystery at all; its bizarre surrogate is!  [8/21/11]