I don't see a lot of people doubting that someone like Warren Buffet, Steve Jobs, or Bill Gates figured out a viable pathway to success, for which luck plays(played) a role, but is not the only factor. The problem is that for every Buffet you have dozens of clowns with platforms, massive egos, and cults of personality.
I would argue that a person that has a happy home life and feels comfortable and sufficiently compensated in their work is a success. There are hundreds of millions such people. This doesn't seem overly complex at all.
Yeah, but when someone says "Marc Andreessen is successful" most people are able to deduce the criteria that was used to make that judgment. So while "success" as a whole may not have a firm definition, "be successful like Marc Andreessen" may.
It is critical to understand that the super rich are not superhuman, though some may believe they are. They are just lucky. That doesn't mean they aren't entitled to their belongings, but it's bad for everyone to believe that such wealth translates to superiority or to some type of hidden knowledge.