3. Shari Arison – $5.2 billion
She focuses a lot of her attention on philanthropic activities by donating to numerous NPOs that help foster educational, healthcare and environmental programs and research. Her most recent book is “Activate Your Goodness: Transforming the World Through Doing Good.”
2. Stef Wertheimer – $5.6 billion
Winner of the Oslo Business for Peace Award in 2010, Stef Wertheimer has dedicated much time, money and effort to improving relations between Israel and Palestine.
His projects include creating free work spaces for startups from regions with poor economic outlooks. He also made almost a billion dollars in the past year for selling Iscar to Warren Buffett’s company, Berkshire Hathaway.