A major sponsor of a nunnery earns his living by being a wholesaler of fish. if we look at it this way, then whatever offerings he gives to the Sangha is tainted and hence does not earn him merits. Nonetheless, the motivation is what counts most of all. His motivation appears to be a sincere one of helping the nuns. As he says, he is not spiritual. Yet he gives to the nuns because he has a strong desire to help. He also says he gives to the nuns because they receive far less than the monks. He will give until he dies. It also earns him merits. In fact, if we view it from the viewpoint of a sincere motivation, then his act of giving helps to cut his cycle of non-virtues and helps him create a cycle of virtues instead.
It is important that the sangha be helped, be they monks or nuns. They are the ones to preserve the Buddhadharma.Even this simple ,yet important fact, is not known to many. Many are basically ignorant of even the role and importance of the Three Jewels in the life of every Buddhist.