BBC World Service - Good Bad Billionaire

Nelson Peltz: Junk bond activist

Nelson Peltz made his money via some contentious methods, but fame came via his daughter

Prince Alwaleed bin Talal built his fortune betting against the crowd

As COO of Facebook, then Meta, Sheryl Sandberg is a rare billionaire employee

Lord Sugar built a fortune, conquered television, and became Britain’s best-known boss

How Brazilian brothers Wesley and Joesley Batista built the world’s largest meat empire

Tao Huabi went from childhood poverty in China to building a chilli oil empire

How Paul McCartney became the UK's first billionaire rock star

How Reed Hastings took Netflix from rental DVDs-by-mail to global streaming giant

How tennis legend Roger Federer became one of the most marketable athletes in history

Luana Lopes Lara is now the world’s youngest female self-made billionaire