Technology makes certain kinds of oppression (and means of gaining and keeping power) easier or possible at all, and makes certain other kinds harder or impossible.
Technology does more than simple magnification.
Technology does more than simple magnification.
North Korea on the other hand, manages perfectly well to oppress it's people without technology. Imagine what would happen if those people had an internet connection.
However, all advantages are lost the moment someone legislates always in favor of the rulers which is what happened in the UK. Now we're tied and gagged with permanent threat of imprisonment for having an opinion (this has happened a LOT recently).