Adam,
Yeah, that's an interesting thought. I think more accurately, the green would generally slope toward its front-left entrance, with perhaps one extra little roll on the right; so when approaching it from the right fairway, it would seem as though the right edge were higher. It wouldn't be a #10 at Oakmont sort of thing.
My motivation is that a wedge shot over a bunker isn't a big deal to a good player. What other defenses are available that will motivate a player to use that left fairway?
Related to this, have you been to or seen pictures of Commonwealth in Melbourne? That course has a lot of high-side greenside bunkers that function very well, but it's a bit unusual. Just wondering your opinion of that setup.