On the "all the stories" part, there are a couple of things here worth teasoing out. First, it is worth separating out the information marketers, affiliate marketers and SaaS, etc. They're different businesses. Second, the public success stories go through a spin cycle, but there are many more quiet successes that never get above the radar. Why? Niches are small and take a single human's effort to capture. No need to publicize that you're pulling in $300k/yr doing this specific thing in this specific way 1000 other people here could do. Many are a winner take all and you'd have to be a complete idiot to share. That's like posting your credit card number on the web. I am not going to tell anyone here what I do, but I will be happy to share how it impacts my life.
So that's why it feels that way. The actual reality is very different.