When a group of the nation’s largest companies said last month that they had changed their mission strictly from making profits to also include benefiting “customers, employees, suppliers, communities and shareholders,” it was generally applauded as an important step in the right direction.

But on Wall Street and in Washington, the statement by the group — Business Roundtable — has not so quietly caused a new round of hand-wringing and a surprising amount of ideological and philosophical questions about the role of industry in society.

Treasury Secretary Steven Mnuchin in his first public comment on the topic, flatly told me: “I wouldn’t have signed it,” stunning a room of policymakers and business leaders in Washington at last week’s DealBook DC Strategy Forum.

His explanation was nuanced: “To be profitable, you have to have a purpose. I think it’s not as simple as saying we either have a purpose or we have profits. I think the problem with creating a simple answer is it doesn’t fully explore the issues.”