Is the Master Signifier Withheld in the Narrative?

The subject is supposed to know who deploys the master signifier, right? And I think don't you think it's why there's such a difference when you watch a film, say, directed by George Lucas versus the film directed by, I don't know, David Lynch, Spike Lee, someone like that. You really suppose these latter figures to know,. whereas Lucas, you're after you've seen the prequels at least, you're like, well, I don’t know. Does even know what he's doing?