The conscience holds many individuals back from committing deeds of extreme wickedness. Imagine how much worse world conditions would be if no one had a conscience!
وَٱلْيَوْمَ ،‏ لَا يَزَالُ ٱلضَّمِيرُ يَلْعَبُ دَوْرًا فِي حَيَاةِ ٱلْبَشَرِ .‏ ‏