hey, uhhh, so, in Cassandra's Companion Quest, Lucius has some interesting dialog-
Lucius: I presume you know we Seekers of Truth were the original Inquisition. Oh, yes. We fought to restore order in a time of madness long ago, as you do now. And we became proud. We sought to remake the world — to make it better. But what did we create? The Chantry. The Circles of Magi. A war that will see no end.
[Option 3 'You betrayed your people!' gives you: "You lured your entire Order to their deaths!"]
Lucius: There was no other choice. We Seekers are abominations, Cassandra. We created a dying world, and fought to preserve it even as it crumbled. We had to be stopped. You don't believe me? See for yourself.