The toys of the rich become the tools of the poor, when given enough time. Yes, the rich will get all this stuff soon, but eventually, if successful, they will become so cheap everyone will have (or be able to have, should they wish) one.
Anyone who is enthusiastic about something might overemphasise its abilities, especially if they are trying to sell it. If you know that you won't get quite so offended or surprised by these pitches not precisely panning out in the long run, saving us from having to read the age-old faux-outrage responses again and again and again every time someone attempts to introduce a new way of doing things.
The petty ramblings of billionaire technologists are allowing you to read what I'm writing, so I'm not sure you can call it mostly drivel...