This is going to be a tough argumentative nut to crack. DMOF can always say they didn’t listen to their conscience. I think dilemmas would be the knife which would divide bone from marrow, and even then it’s not certain.
But most everybody's conscience develops (for better or for worse) as they get older, most dramatically, I guess, in the case of a St. Paul type conversion (or any conversion). I think Lucile Hasley said a good way to drive yourself nuts is to judge your years-earlier actions by your converted conscience!
Constant vigilance is the price of more than liberty.