OMAHA — It is called “Woodstock for Capitalists” for a reason.

More than 40,000 investors descended on Omaha this weekend for Berkshire Hathaway’s annual meeting, in celebration of an economic model that has come under attack over the past year by political leaders like Alexandria Ocasio-Cortez as well as billionaires who warn that capitalism could lead to “class warfare.”

The most prominent face of capitalism — Warren Buffett, the avuncular founder of Berkshire and the fourth wealthiest person in the world, worth some $89 billion — appeared to distance himself from many of his peers, who have been apologizing for capitalism of late.

“I’m a card-carrying capitalist,” Mr. Buffett said. “I believe we wouldn’t be sitting here except for the market system,” he added, extolling the state of the economy. “I don’t think the country will go into socialism in 2020 or 2040 or 2060.”

There is something oddly refreshing about Mr. Buffett’s frankness.

Many of today’s business leaders appear to publicly wring their hands over the state of inequality or take moral stands on public policy issues. But when it comes to offering up concrete solutions and actually making the hard decisions that could affect their bottom lines, they have much less to say.