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9. John Patterson

The tyrannical Patterson liked to fire and then rehire executives to break their self-esteem. He banned “harmful” foods—including bread and butter—from company premises and had employees weighed and measured every six months. In 1913, he and 29 NCR officials were convicted of various antitrust violations, including the use of “knockout men” to intimidate store owners and keep them from buying from NCR’s competitors. (The conviction was overturned a year later.) Patterson may be best known for firing Thomas Watson, who went on to build IBM.

THE STAT: Today, NCR is worth $1.5 billion.

By Portfolio.com