One person has done something good or bad. Then all people who are in that specific group must be like this. Think of Politicians. One does something bad they are all bad. One bicycle driver is riding like crazy so lets ban all of them. I had some bad Asian food so Asian food in general must be bad. Country X had a shooting once so it must be a unsafe country.
You can find examples like that everywhere.
It makes sense that we also have that bias when it comes to success stories.
Plus with the social media culture of "Do thing X" and you will be successful.
I see that all around: Write a paper journal and you will be successful. Wake up early and you will be successful. Read a bazillion books a year and you will be successful. Read my book and you will be successful. Listen to that podcast and you will be successful. Start a shitty idea startup and sell it after X years and you will be successful.
In the end success is not only hard work. Its not only doing thing X. It has so many variables and random points that we can't just replicate someones success story.
Just think about it for a second. As a European reading about US success stories. How much does it help? The (business) culture is totally different. Yes the internet makes it kind of easier but still its just not the same.
Also whats different is that you are not starting at the same time, location, community, knowledge and luck/random level.
So yeah its fun to read these success stories but they should not be your guide of how to become successful yourself.