Having participated in many "charities", you'd be a fool to believe an operation just because it is registered as a "not for profit".
Look at the executive-pay, and if it is over 2x the cost-of-living, you're looking at a money-funneling-to-executives scam, that is masquerading as a not-for-profit.
The amount of spine required to have real integrity, in this planet, is apparently greater than the amount of spine available in a human life?