The real habits worth noting would be inheritance, started a company, took over a company from a parent, investing trends, etc. This is all bullshit
Yet another article glorifying hard work. No long lunches ? really? sound like total BS. Different people's mind works differently. You don't have to be tied to the desk to work, you can come with great ideas while having long lunches.
My favorite was no gossiping. My bet is on "wealthy people lie about gossiping" rather than "wealthy people don't gossip".