"I am a seething mass of Lutheran Midwestern guilt."

"I am a seething mass of Lutheran Midwestern guilt," said David Letterman on national TV. Letterman may not be the poster child of the Lutheran faith with the subsequent confession of multiple partner sexual experiences.
I would have hoped that his Midwestern Lutheran experience would have limited his transgressions. Perhaps the guilt after one or two experiences could have stopped or slowed him. Is he feeling guilty only because he got caught?
We do not yet know the extent of his actions, but we can hope that his guilt will limit his future actions. And we could hope even more, that he might embrace his Christian roots and embrace personal reform: personal witness to sin, forgiveness, and new life.