In March 2018, Bezos dispatched Amit Agarwal, Amazon's global senior vice president, to India with $5.5 billion to localize operations throughout the company's supply chain routes. Later in the month, U.S. President Donald Trump accused Amazon—and Bezos, specifically—of sales tax avoidance, misusing postal routes, and anti-competitive business practices. Amazon's share price fell by 9% in response to the President's negative comments; this reduced Bezos's personal wealth by $10.7 billion. Weeks later, Bezos recouped his losses when academic reports out of Stanford University indicated that Trump could do little to regulate Amazon in any meaningful way. During July 2018, a number of members of the U.S. Congress called on Bezos to detail the applications of Amazon's face recognition software, Rekognition. Additionally, statements by the Trump administration, in favor of overturning the antitrust law known as the Paramount Decree, have been predicted to help Amazon acquire the Landmark Theaters chain.
Criticism of Amazon's business practices continued in September 2018 when Senator Bernie Sanders introduced the Stop Bad Employers by Zeroing Out Subsidies (Stop BEZOS) Act and accused Amazon of receiving corporate welfare. This followed revelations by the non-profit group New Food Economy which found that one third of Amazon workers in Arizona, and one tenth of Amazon workers in Pennsylvania and Ohio, relied on food stamps. While preparing to introduce the bill, Sanders opined: "Instead of attempting to explore Mars or go to the moon, how about Jeff Bezos pays his workers a living wage?" He later said: "Bezos could play a profound role. If he said today, nobody who is employed at Amazon will receive less than a living wage, it would send a message to every corporation in America." Sanders's efforts elicited a response from Amazon which pointed to the 130,000 jobs it created in 2017 and called the $28,446 figure for its median salary "misleading" as it included part-time workers. However, Sanders countered that the companies targeted by his proposal have placed an increased focus on part-time workers to escape benefit obligations. On October 2, 2018, Bezos announced a company-wide wage increase, which Sanders applauded. The American workers who were being paid the minimum wage had this increased to $15 per hour – a decision that was interpreted as support for the Fight for $15 movement.
On March 6, 2018, Bezos was officially designated the wealthiest person in the world with a registered net worth of $112 billion. He unseated Bill Gates ($90 billion) who was $6 billion ahead of Warren Buffett ($84 billion), ranked third. He is considered the first registered centi-billionaire (not adjusted for inflation).
In March 2018, Bezos met in Seattle with Mohammad bin Salman, the crown prince and de facto ruler of Saudi Arabia, to discuss investment opportunities for Saudi Vision 2030. In March 2019, Bezos's security consultant accused the Saudi government of hacking Bezos's phone. According to BBC, Bezos's top security staffer, Gavin de Becker, "linked the hack to the Washington Post's coverage of the murder of Saudi writer Jamal Khashoggi at the Saudi consulate in Istanbul." Khashoggi, a Saudi journalist and dissident was employed as a writer at the Washington Post, owned by Bezos. Khashoggi was killed in late 2018, in Turkey's Saudi consulate for his critical stance and journalism against the Saudi government and its leader.
In September 2018, Business Insider reported that Bezos was the only one of the top five billionaires in the world who had not signed the Giving Pledge, an initiative created by Bill Gates and Warren Buffett that encourages wealthy people to give away a majority of their wealth. That same month, Janet Camarena, director of transparency initiatives at Foundation Center, was quoted by CNBC as having questions about Bezos's new fund, including the fund's structure and how exactly it will be funded.
In January 2018, Bezos made a $33 million donation to TheDream.US, a college scholarship fund for undocumented immigrants brought to the United States as minors. In June 2018, Bezos donated to Breakthrough Energy Ventures, a private philanthropic fund founded by Bill Gates aimed at promoting emissions-free energy. In September 2018, Bezos donated $10 million to With Honor, a nonpartisan organization that works to increase the number of veterans in political office.