A most secret core and sanctuary, not a church door
The thought occurs that, with all the chatter in recent decades about how one must follow one's conscience even when it contradicts Church teaching -- why, even Aquinas says so! -- we've sort of lost the fundamental point about conscience:
One must follow one's conscience even when it contradicts what one wants to do.
I suspect people far more commonly don't follow their conscience than follow it in contradiction to Church teaching. Even if they're dissenting Catholics. Heck, even if they're not Catholics at all.