First of all, it's certainly not in our nature to fly, and yet building airplanes has been both successful and positive; we commonly fight and beat nature when

First of all, it's certainly not in our nature to fly, and yet building airplanes has been both successful and positive; we commonly fight and beat nature when we believe it's in our interest. Second, it is much better to potentially waste resources on what you believe is morally right, rather than save them and do what you believe is morally wrong. In other words, the two sides here are asymmetric, and the burden of proof is not on the side that wants to do what is morally right. Of course, different people can have different moral values; so while I disagree with those who would say that they don't consider fairness a value (or interpret it in a different way), I don't think they're intellectually dishonest. However, I think that those that try to support their position with a "neutral" natural fallacy are intellectually dishonest.