That's a very reductionist view on the topic. I work in a fintech startup which automates detecting online fraud (our customers are mostly various online stores

That's a very reductionist view on the topic. I work in a fintech startup which automates detecting online fraud (our customers are mostly various online stores). I'd say it provides concrete value for society. There are thousands of startups like that, which generally increase efficiency in some existing business processes, or in manufacturing, shipping etc.