What did you think of John D Rockefeller, Henry Ford, Howard Hughes, Sam Walton and Hetty Green?

These five titans of American industry include an oil tycoon, a motor magnate, an eccentric aviator, the founder of Walmart, and an unsung pioneer of value investment known as the ‘Witch of Wall Street’. They helped shape business in the United States, but were they good, bad, or just billionaires?

In Good Bad Dead Billionaire, BBC business editor Simon Jack and journalist Zing Tsjeng share their stories. Now we bring your verdicts in messages from across the world, including from Zambia, Ireland, Nigeria, Germany, the UK and Australia.

Good Bad Billionaire is the podcast that explores the lives of the super-rich and famous, tracking their wealth, philanthropy, business ethics and success. There are leaders who made their money in Silicon Valley, on Wall Street and in high street fashion. From iconic celebrities and CEOs to titans of technology, the podcast unravels tales of fortune, power, economics, ambition and moral responsibility.

To contact the team, email [email protected] or send a text or WhatsApp to +1 (917) 686-1176. Find out more about the show and read our privacy notice at www.bbcworldservice.com/goodbadbillionaire.