It certainly did not take long to work "Adolf Eichmann" into your posts.

Vatican II reiterated the constant Catholic teaching that one must follow one's conscience.

However, it also reiterated that we are morally obliged to correctly form our conscience.

If we do not, if we stick our fingers in our ears, fail to avail ourselves of the resources available to us - particularly as Catholic, disregard the moral law and habituate ourselves to sin, we commit a sin in doing so.

And having done that, the sins committed by following our erring conscience may be imputed to us.