What you're saying makes some sense, but I think you're wrong. I have never nor am I ever likely to read the spec sheet of different shoes to determine which to buy. I don't know what I'd learn by looking at that anyway, I know basically nothing about shoes except how they look and what they feel like on my feet.
I could change that, educate myself about shoe materials and construction, but I choose not to for one simple reason: I can educate myself about literally anything and everything, and I've noticed in my life that where ever I look, there is practically infinite depth and detail, and so I have very carefully choose what to spend my time learning about. Shoes aren't it.
Instead I use heuristics -- I have the finely honed taste in branding and advertising that all westerners have, I can infer from the storefront and typefaces and colors on the box what range of quality a given pair of shoes is. From there I have a manageable selection of like 10 types of shoes I can look at, and from there 3 that I like the look of that I can try on. Occasionally I get burned--shoes that my branding intuitions say should be adequate quality for the price turn out to be shitty. But mostly I get this right and end up with shoes that I like.
A shoe expert has a whole different process, I'm sure. They are in the know about the latest construction trends and who is using them, and know how to source them.
Similarly, when you and I buy a computer we can meaningfully distinguish the details of the hardware we're considering, so we do. But most people can't. They have to use branding heuristics. And you know what? I think they are mostly fine. If someone who knows nothing about computers buys a Dell to check their email because they seem basic and reliable, they are going to do fine for the most part.
And for Apple, "people can change the world" isn't the real message. The real message is the thousands of microscopic heuristics that fire when a product brands using high concepts and slick design. They add up to basically "this is a product I am paying extra for, it will be better than most other things on the market but not exactly value for money, and the support on it will be extra good." Which is a heuristic that basically holds for Apple products (although, recently...?)
So actually when I put a personality on my company I am choosing something for my customers that I actually would choose. I'm building in the heuristics they need to make a decision without being an expert in the domain. And because I'm both not an asshole and don't want to deal with a bunch of anger customers, I am going to try to make those heuristics accurate.