Guilt and Immorality

While guilt can in doubtless contribute to someone's deciding to act morally, in some cases I think that it can actually cause immoral acts.  In my opinion, guilt is not an innate guide to good and evil, but is primarily a product of the circumstances in which a person grows up and lives.  Therefore, it can be misguided, and not synchronised with actual morality.  In addition to the obvious cases of simply omission of moral principles (such as a person not feeling guilty for treating homosexual people badly), it can extend to causing people to feel guilty about things which are morally correct, and therefore decide not to do those things (for example, an individual seeing a homosexual person in need of assistance might consider helping that person but ultimately decide not to because they feel guilty about assisting an 'enemy').