It's a little different because SS models from luxury manufacturers are still aimed at luxury buyers. Not so with standard SS AW. Apple is marking up the Edition because of who they're intended for.
This is the point I'm making. Everything has a markup, but for an edition to have the exact same internals and cost 10x the SS or 25x the Sport, it is excessive. I find it hard to believe that a fine watch maker, would only make the material different, and mark it up so high (lets say we ignore the gold material costs for both the AW and other watch makers). Wouldn't they usually come with more complications, or something else to justify the mark up? Or simply, not make the same internals available in a lower end version and the higher end version?