That doesn't mean the advice is not good. Change the telos a little and it mostly still applies.
It's possible to make something important and not get rich. I'm happy having done that and live a (economically) modest life. The most important yet contentious point, I believe, is this one:
> Be internally driven
My feeling is that true freethinkers with the courage of their convictions are less than 1%. I also believe that for most of us, it's actually something that holds one back from wealth.
I won't quote it chapter and verse, but what I believe the author is describing in the last part of this article is not an entrepreneur per se, but an "activist". Or rather, what has come to be labelled in this age of tedious conformity and wannabeism as "activism" - that being the sincere desire to change the world for the better. And all the better if that can be separated from the distraction of ego and personal wealth.
The unfortunate requirement of modernity is that money is necessary for action. Words alone may make a difference, but money helps. Since most so-called "successful" people are merely building fortunes to enable their real success, the telos or vision of their life, the distraction of making money as a step can be excused.
But I would add one last point to the article to make it more rounded.
14. Don't lose sight of your original, real motive.
Along the way many an ambitious person is overwhelmed by their "success", be it money, fame, or power. The cautionary narrative archetype is of course Tony Montana (Scarface). They forget their essential self-hood and the seed from their childhood that really drives them.