That can be to make money but it doesn't have to be.
I dont agree. Most of them that is probably true. I think the purpose is whatever the founder wants it to be, and after they're gone its whatever the person in charge says it is. Perhaps they've agreed to follow the founders vision too. I think it's up to the one in charge to tell shareholders what the purpose of the company is and if an investor wants to buy in, that would be their informed choice.
Even under that concept, I think most companies would say their purpose is to make money. But what if the purpose of SpaceX really is to colonize Mars? Is that a problem? I think not.
You'll find a form of this expressed in Adam Smith's Wealth of Nations, though he speaks here in terms of the entire field of political economy:
POLITICAL œconomy, considered as a branch of the science of a statesman or legislator, proposes two distinct objects: first, to provide a plentiful revenue or subsistence for the people, or more properly to enable them to provide such a revenue or subsistence for themselves; and secondly, to supply the state or commonwealth with a revenue sufficient for the public services. It proposes to enrich both the people and the sovereign.
https://oll.libertyfund.org/titles/smith-an-inquiry-into-the...
Of incorporated firms -- joint-stock companies -- Smith is markedly less enthused, and limits them to serving in insurance and banking, major civil engineering, and public works projects.
The only trades which it seems possible for a joint stock company to carry on successfully without an exclusive privilege are those of which all the operations are capable of being reduced to what is called a Routine, or to such a uniformity of method as admits of little or no variation. Of this kind is, first, the banking trade; secondly, the trade of insurance from fire, and from sea risk and capture in time of war; thirdly, the trade of making and maintaining a navigable cut or canal; and, fourthly, the similar trade of bringing water for the supply of a great city.
https://en.wikisource.org/wiki/The_Wealth_of_Nations/Book_V/...
This is also the major thrust of Matt Levine's Bloomberg article on the Roundtable announcement commented elsewhere in this thread: https://www.bloomberg.com/opinion/articles/2019-08-19/maximi...
Edit: spelling.
His harshest criticisms were against those concentrations and abuses of power. His strongest and most heartfelt arguments were for the common man. He wasn't some wealth gospel preacher, despite often being portrayed as such. And his attacks on the power and dangers of corporations were well taken.
J.K. Galbraith's The Age of Uncertainty explores this in depth. As does much of the writing of Emma Rothschild. Among many others.