That's certainly one way to look at them. Although it's largely semantics, I tend to think of them more as being opposites. One way to put it is that Arthur is concerned with theory while Lancelot is concerned with practicality. Or Arthur is concerned with the big picture and Lancelot is concerned with how things matter for people he actually cares about. Both are legitimate view points, but it results in conflict between them.

In this AU, though, I've pushed things further along in one direction. Lancelot no longer has much to care about, but he does cling, in his way, to old ties and to his own pride. At least that's one way to look at it.