Sky ad technology can be developed out of the good of someone's heart. Maybe to show emergency alerts quickly. Disaster warnings. But then, it gets in the wrong hands.

We could say similar stuff about the internet. I don't think Tim Berner's Lee had bad intentions when founding the World Wide Web. It's a double edged sword. Same has happened with a lot. I even believe that God's sacrifice on the cross- an act of perfect love for all humanity- has been misused to control, manipulate and abuse. The guy who created dynamite wanted it to be used for safer mining practices, not a weapon. Many things we make as humans seems to be invented for good, but used for evil

Internet advertising wasn't initially that bad either. People would pay to have a button for their site to appear on another page. Or a video to play on a streaming site. Then someone thinks "let's actually make more relevant ads appear. This video is about videogames, let's show a videogame ad." Then: "We can see what videos this user likes, so we can get an idea that they like videogames, so let's show them videogame ads, even on other videos". And it eventually morphed into "We can see this user visited this videogame shop 1 month ago thanks to our other maps service. Let's show them adverts for that shop's sale". It's just crazy.