The bold purple box is explicitly talking about “OpenAI Global, LLC”, which _is_ the “for profit” company.
See also: “OpenAI LP’s primary fiduciary obligation is to advance the aims of the OpenAI Charter, and the company is controlled by OpenAI Nonprofit’s board. All investors and employees sign agreements that OpenAI LP’s obligation to the Charter always comes first, even at the expense of some or all of their financial stake.” --https://openai.com/blog/openai-lp
To emphasize, they will not take your investment money until you've signed an agreement saying that you're aware of all of this.
