Billionaire industrialist Charles Koch on Sunday compared the efforts of his political network to the fight for civil rights and other “freedom movements,” part of a growing effort by the organization to emphasize its commitment to the plight of the disenfranchised.

During remarks to 450 wealthy conservatives assembled in the ballroom of a lavish oceanfront resort, Koch urged his fellow donors to follow the lead of figures such as Frederick Douglass, Susan B. Anthony and the Rev. Martin Luther King Jr.

“Look at the American revolution, the anti-slavery movement, the women’s suffrage movement, the civil rights movement,” Koch said. “All of these struck a moral chord with the American people. They all sought to overcome an injustice. And we, too, are seeking to right injustices that are holding our country back.”