What the article fails to address is that a) I'm already sold on the new product prior to its announcement and release and b) as a backup, if I really need it, there's a retail store where I can purchase the good or service that I need to easily complement my previous purchase.
Apple store employees are gophers, regardless of background and pedigree. They're cashiers that fetch my cables, machine or add-ons instead of me having to surf through the isles of a warehouse cum store hoping to catch the eye of someone wiring their third shift. And that's why I readily pay a premium for their products: a combination of hardware excellence and premium customer service.
That Apple doesn't pay commissions and top dollar to their low-level retail employees doesn't surprise me. It's a manifestation of supply and demand and I accept that.