These kind of articles and discussions almost invariably lead to defeatists and cynical attitudes. It's akin to saying "Unless you're born with good genes, you'll never be an Olympic athlete, so don't bother training and exercising".

You may not ever be wealthy by trying and working hard because of the role luck plays. But there's value in working hard at it that everyone should know, just like there's value in physical training that everyone should know. It takes training and (very importantly) discipline to stick with it.