Second part of your answer is the reason why I was posing the question. I’m not of the idea that all tech is unnecessary. We need information systems for thing

Second part of your answer is the reason why I was posing the question. I’m not of the idea that all tech is unnecessary. We need information systems for things like banking, healthcare, government and so on. But as you pointed out there are also tech products that are definitely not essential or even counter productive to society that employ a lot of people.