“Our culture has declared war on guilt. The very concept is considered medieval, obsolete, unproductive. People who trouble themselves with feelings of personal guilt are usually referred to therapists, whose task it is to boost their self-image. No one, after all, is supposed to feel guilty. Guilt is not conducive to dignity and self-esteem. Society encourages sin, but it will not tolerate the guilt sin produces. But the answer to dealing with guilt is not to ignore it-that’s the most dangerous thing you can do. Instead, you need to understand that God graciously implanted a powerful ally within you to aid you in the battle against sin. He gave you your conscience, and that gift is the key to bringing you joy and freedom.” ~John MacArthur
This explains everything. Why do celebrities perform such scandals? Why does the president make poor decisions without confessing his mistakes? Because they can, and they can without feeling guilty, because society has driven out every trace of a conscience in their minds.