That really depends on the severity of the lore carpet-bombing, honestly. If the Dark Knight quests say you're The Twelfth Man, then...well there's gobs of class stories that state the same nonsense which is outright ignored.
Now if, say, the Dark Knights only allow people to be counted as a Dark Knight if they succumb to a voidsent completely, then that's something that might cause me to retcon some things, as Steel seeks power but isn't willing to bend into servitude.
Now if, say, the Dark Knights only allow people to be counted as a Dark Knight if they succumb to a voidsent completely, then that's something that might cause me to retcon some things, as Steel seeks power but isn't willing to bend into servitude.