I liked the commentary about preppy white guys. I think this was deliberate (perhaps subconsciously so), but not for reasons why it might happen today.
First, back in the 80s there was still a big issue as to whether execs would use computers. Most could not type; that was at that time considered a female activity. Sounds absurd, but this was literally a topic not just in newspapers talking about computers but also in computer journals wondering if PCs could break into business. And most execs were (and still are :-( ) male.
Second, the Mac was quite a bit more expensive, really at the edge of what an individual could afford (Apple offered a finance plan, if not at launch then soon after). So they were making an affinity pitch to people who could afford it.
> Also, why is the keyboard in Chapter 3 positioned like that? Why on earth was it posed that way?
I suspect it was to show you could use the mouse and not be intimidated by that scary keyboard thing.
I was also struck by the Chapter 3 photo as it seemed to be the only one that could have been shot today (except for the Mac itself of course). All the others had hairstyles, color palette, and/or artifacts (desk phone, tape dispenser) that you'd never see today. Even the final shot of the Stanford Campus has bikes that look old fashioned.