Guilty pleasures

Pleasure and pain are both motivating factors in our choices/decisions. Why is guilt lumped in with pleasure? Have we made pain the "better" motivator? So much that we have tied pleasure to pain with the ribbon of guilt? So pleasure isnt even a motivator anymore. Until we release the need to inflict pain (guilt included), we are locked into pain as the only growing tool. Growing pains. Guilty pleasures. Wow. Those phrases tell us a lot about our unconscious patterning.