How we cite our quotes:
"But I'm not going to sell it to just anybody," he protested. "Only to certain people, people who deserve it. And it will be very, very expensive. But who wouldn't give a fortune to live forever?"
"I wouldn't," said Tuck grimly. (19.23-4)
This seems pretty obviously wrong, wouldn't you say? But why? How is controlling who gets the water any different than keeping it a secret (like the Tucks are doing)? What's the difference?
And then, seeing its body broken, the thin wings stilled, she had wished it were alive again. She had wept for that wasp. Was Mae weeping now for the man in the yellow suit? In spite of her wish to spare the world, did she wish he were alive again? There was no way of knowing. (21.10)
Winnie killed a wasp. Mae killed a person. Pretty big difference, right? But in Winnie's mind, wrong is wrong.
Winnie had her own strong sense of rightness. She knew that she could always say, afterward, "Well, you never told me not to!" But how silly that would be! (23.7)
The narrator couldn't be any clearer: Winnie's got firm ideas about morality. Ah, but there's the rub. That sense of rightness tells her not to disobey her family, but it also tells her to help the Tucks. Hey, we never said morality was easy.