SÃO PAULO, Brazil — Jair Bolsonaro, Brazil’s new far-right president, stepped onto the international stage this week at the World Economic Forum in Davos, Switzerland, with a pitch that had resounded with voters back home: He was committed to eliminating entrenched corruption in his country.

But a series of questionable episodes just three weeks into his term has left Mr. Bolsonaro, who rode to power by denouncing elitist privilege, fending off charges that his administration is engaging in more of the same.

Three ministers as well as some midlevel directors implicated in corruption investigations have been hired by the administration, despite Mr. Bolsonaro’s stated policy of zero tolerance. The son of the vice president was promoted and given a threefold raise at a state-owned bank. Even a fine levied against Mr. Bolsonaro for fishing in protected waters back in 2012 was voided by the authorities.

Mr. Bolsonaro and his allies have also continued using legal but much-despised political privileges, such as accepting the moving allowances granted to federal lawmakers and officials — even when they already live in the capital.