Let's taboo "nonprofit." If a tax deductible charity starts making more than de minimis business profit, the charity is no longer eligible to offer tax deductions. But the purpose and mission of any charity is not tied to its tax status. In fact, there are many charities that haven't procedurally qualified to give tax deduction for donations.

But as others have said, I'm not sure why this would be a problem if MIRI had a foom fAGI.