I've not done Dragoon/Pugilist/Maurander so I can't comment on that, but in regards to paladins healing... yes? You're the tank, not the healer.

You can cast enough to keep yourself going in an emergency of if your healer is busy with something more important (raise?), but that's it. If you could heal for same as a healer, there wouldn't be any need for healers. You'd be tanking/healing yourself.