I agree with the sentiment of your post, but I think the examples are a bit too far fetched:
I’d wager most people use a computer/phone on a daily basis, which is why having a basic understanding of it seems like knowledge we should all have.
Inversely, most people don’t need even have a turbo in their car and many don’t even have a car, so any knowledge relating to that is probably useless for them.
That being said, even if someone is less knowledgeable in a field, respect should always be the baseline, as you illustrate, they’re probably skilled in something else!
I’m saying that as an IT person that’s aware that I’m making money mostly because people don’t bother to learn all this, so in the end I don’t mind that much.