A mere 3.8% of wealthy people made their fortunes in food service, according to Wealth-X. Daniel Lubetzky created the first KIND bar after trying a snack bar made with whole fruits and nuts while on a business trip in Australia and has since built a $1.2 billion fortune selling the bars and other snacks, according to Forbes.James Dyson is one of only 3.9% of wealthy people who made in their fortune in construction or engineering, Wealth-X reports. Despite lacking a formal engineering degree, Dyson invented the world's first bagless vacuum cleaner in 1986 and has since branched out into other appliances, earning him a net worth of $6.1 billion, according to Forbes.Only 4.1% of high net worth individuals got rich working in hospitality and entertainment, Wealth-X reports. Former street performer Guy Laliberté built a $1.2 billion fortune after growing his Montreal-based circus troupe into the multibillion-dollar entertainment empire known as Cirque du Soleil, starting with only a $1 million arts grant, Business Insider previously reported.Just 4.1% of wealthy people made their fortunes in the manufacturing sector, according to Wealth-X.That group includes Diane Hendricks, who made an $8.9 billion fortune running roofing, window, and siding producer ABC Supply, per Forbes.Tech billionaires such as Bill Gates, Mark Zuckerberg, and Larry Page might be some of the most famous members of the three comma club in the world, but relatively few wealthy people made their money from technology. Only 4.7% of people with net worths over $5 million made their fortunes in tech, according to Wealth-X.Only 4.9% of wealthy people with fortunes over $5 million made their money in the healthcare industry, according to Wealth-X. The net worth of Ernesto Bertarelli, the richest person in Switzerland, is from his stake in pharmaceutical company Serono, per Forbes.According to Wealth-X, 5.4% of wealthy people made their money in real estate. With a net worth of $7.6 billion, Stephen Ross is the wealthiest real estate developer in America, The Real Deal reported in 2019.Over 7% of wealthy people work for nonprofits full time, according to Wealth-X. However, many of them initially made their fortunes elsewhere, like Bill and Melinda Gates.More than 16% of wealthy people made their fortunes working in business and consumer services, according to Wealth-X.David Steward founded World Wide Technology, an IT services company that has generated over $11 billion in sales, and earned himself a $3.5 billion fortune in the process, Forbes reports.More wealthy people work in banking and finance than any other industry, according to Wealth-X. JPMorgan Chase CEO Jamie Dimon is among the 22.6% of wealthy people worth over $5 million who made their money in the financial sector.