The confusion is throughout your post. Conscience is never malformed. Intellect and will together can violate the conscience (immediate knowledge of right and wrong) which remains pure despite the malformations of intellect and will surrounding it. Again, this is why conscience can break through and reasserts itself when we sin according to the defects of our intellect and will as they submit to the world, the flesh, and the devil.
Unless they are insane, people who do evil KNOW they have done evil even when or after they exert themselves mightily by intellect and will to justify their evil actions.
"Thee have I preached; Thee have I taught. Never have I said anything against Thee. If anything was not well said, that is to be attributed to my ignorance. Neither do I wish to be obstinate in my opinions, but if I have written anything erroneous … I submit all to the judgment and correction of the Holy Roman Church, in whose obedience I now pass from this life.” Thomas Aquinas
Here is an instance of Aquinas asserting that his views might be in error because of the weakness of his intellect, yet his conscience is not in error because he submits all his intellectual errors to correction by the Church. Contrast this with the arrogance of Martin Luther who supposedly followed his conscience but in fact sinned against humility.
Friend, I don’t know what to say. You just don’t understand what the conscience is, and you ignore the facts of human experience. It is plain to see.
Here is the CCC on the topic.
1783
Conscience must be informed and moral judgment enlightened. A well-formed conscience is upright and truthful. It formulates its judgments according to reason, in conformity with the true good willed by the wisdom of the Creator. The education of conscience is indispensable for human beings who are subjected to negative influences and tempted by sin to prefer their own judgment and to reject authoritative teachings.
1784
The education of the conscience is a lifelong task. From the earliest years, it awakens the child to the knowledge and practice of the interior law recognized by conscience. Prudent education teaches virtue; it prevents or cures fear, selfishness and pride, resentment arising from guilt, and feelings of complacency, born of human weakness and faults. The education of the conscience guarantees freedom and engenders peace of heart.
1785 In the formation of conscience the Word of God is the light for our path, we must assimilate it in faith and prayer and put it into practice. We must also examine our conscience before the Lord’s Cross. We are assisted by the gifts of the Holy Spirit, aided by the witness or advice of others and guided by the authoritative teaching of the Church.
1786 Faced with a moral choice,
conscience can make either a right judgment in accordance with reason and the divine law or, on the contrary, an erroneous judgment that departs from them.
1787 Man is sometimes confronted by
situations that make moral judgments less assured and decision difficult. But he must always seriously seek what is right and good and discern the will of God expressed in divine law.
1790 A human being
must always obey the certain judgment of his conscience. If he were deliberately to act against it,
he would condemn himself. Yet it can happen that
moral conscience remains in ignorance and makes erroneous judgments about acts to be performed or already committed.
1791 This ignorance can often be imputed to personal responsibility. This is the case when a man “takes little trouble to find out what is true and good, or when conscience is by degrees almost blinded through the habit of committing sin.” In such cases, the person is culpable for the evil he commits.
This is the teaching of the Church, within the context of its understanding of
what conscience actually is.
And yes, some people who do evil really believe they have done good. Could they eventually understand that what they did was evil? Sure. But that is a matter of forming the conscience rather than using it.
I can be of no more help in this thread. The truth is very clear that we are bound to follow our conscience in every case in which it makes a real judgment, or else we become evil-doers simply by seeking to do what we believe is wrong.
Peace.
