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.