It's a double edged sword. Technology has improved our standard of living and made it much easier for people to share knowledge, but at the same time we have become reliant upon it. In the more developed countries with high-tech cars, e-mail, cell phones, state of the art medical treatment, etc; we tend to think of ourselves as better off than our 3rd World counterparts. HOWEVER, if all the computers were to be shut down due to terrorist attack or atmospheric disruption, it would be the man in Afghanistan or any other under-developed country who has lived this way all his life that would be unaffected, while the rest of the so-called "civilized" world would be thrown into chaos.
Like all things, technology comes with its advantages and its disadvantages.