Henry Clay Frick was an American industrialist and art patron. Also known as the  father of the modern steel industry Frick was once voted the most hated man in America.

His action to one of the strikes in Carnegie Steel's mills in protest against lower wages resulted in resulted in 16 deaths.  He was shot three times and stabbed twice by an activist but he survived.

12. Robert Eugene Allen

Robert Allen was the president of AT&T between 1986 and 1988. He also served as its CEO and chairman from 1988 until 1997.

Bob Allen forced a unsuccessful merger with computer company NCR Corporation. AT&T cracked due to his lack of strategy. In 1997, AT&T lost more than $12 billion in a few months. Allen also laid off 50,000 AT& T employees.