These companies are faceless because all your interactions with them do not go through humans and are usually devoid of any real, personal human interactions.
It's not a literal take on the word faceless, there are faces, they're just not real. The real ones don't face you.
>For most people every interaction with Apple goes through a human.
No they don't. For a lot, sure. Most? No.
These people the interact with are part of the faceless attribute, they're usually pretty robotic interactions. But yes, they're a great part of Apple. To talk to a human.
>All in-store with an Apple employee.
They will usually say: "Okay let us take a look." and "Okay we took a look. You need a new X."
It's not the most faceless, but it is one of them. It's nearly impossible not to be faceless in this market.
Everyone knows who the CEO and key executives are since they are visible at every product release.