By that exact logic Tiktok should be the most valuable company on the world, yet its not even in top 10. Attention doesn't automatically generate profit especially since most of these companies are yet to monetize attention. They are still burning billions and the public opinion on this outside of tech bubble is very negative. It wouldn't surprise me if the money on the internet falls to pre-2020 levels in next few years. Subscription pricing model is also becoming increasingly cumbersome for companies and individuals which is another worrying trend.