[userulluipeste]

To me, the rules stated by Phineas Taylor Barnum help one navigate in life while nonetheless contributing positively to society, whereas these "private rules for the Robber Barons" are just a pamphlet aimed to (politically) cast a bad light on the ruthless money making. The later, if taken literally, are more akin to stating how crime (as in practice detrimental to society) and abuse can be profitable.