WASHINGTON — President Trump rarely misses a chance to offer himself up as the champion of “forgotten” Americans, men and women who feel ignored or derided by elites and believe, as he frequently says, that the “system is rigged” against them.

“You will never be ignored again,” he said this month at a campaign-style rally in Pensacola, Fla., a phrase that became the banner headline the next morning in the local newspaper.

But this week, the president hopes to sign with great fanfare a tax bill that would deliver its largest benefits, not only in dollar terms but also as a percentage increase in income, to corporations and the wealthiest Americans. His own family stands to gain from tax breaks maintained or extended for corporate real estate ventures, and his heirs have reason to celebrate the doubling of the exemption from estate taxes: Under the bill, the Trump children and grandchildren could inherit $22 million tax free, though they would have benefited more from a cut in the estate tax rate or an abolition of the tax altogether.

Last week, the Federal Communications Commission, led by Mr. Trump’s pick as chairman, Ajit Pai, reversed the Obama-era policy known as net neutrality, over the objections of consumer groups and owners of small internet businesses, who fear that without the protection, giant internet service providers like Comcast and Verizon will charge internet companies for offering “fast-lane” speeds, slow down the content of companies that do not pay or even block them. Consumers could be charged variable rates for internet access, depending on which websites they visit.