Netflix had a series called The Men Who Built America, all about those men. I don’t think the term Robber Baron was used once. Instead, they showed how they were single minded men of their times.
I remember reading about John D. Rockefeller who made his fortune by illuminating America.
Kerosene was available only to the rich as it cost several dollars a gallon. Rockefeller began shipping it in rail car tankers instead of small barrels, bringing the cost to about $.50 a gallon, thus enabling every home and farmhouse across America to have some light in their home after 7pm.
It helped make him the richest man ever and improved the lives of millions.
Netflix ran a pro-conservative series? What a pleasant surprise. I always thought they were a leftist platform.