Keep in mind when discussing internet access that effectively for the general public, the internet has only been with us for 20 years. And that was just the birth of its public mindshare - significant penetration would still take quite a few years yet in developed countries.
It also doesn't really fit in with the rest of the stats you're presenting - people can and do live quite luxurious lives without using the internet, but not so for the other items.
Yes, I wasn't trying to imply Internet access is essential, although it is such a powerful technology that lacking access to it generally sets you back a lot in the global rat race. Rather, I was trying to give a sense of how distribution of technologies progresses. It would have been helpful to have a few more data points but I couldn't think of good examples. (Especially in the higher ends -- what powerful technology do the rich have now that the rest don't? Maybe travel via airplane?)
Not to mention, with smartphones getting cheaper and cheaper, a lot of people in developing nations are getting access to the internet for the first time.
It also doesn't really fit in with the rest of the stats you're presenting - people can and do live quite luxurious lives without using the internet, but not so for the other items.