Two Common Arguments Against Indirect Theories
Two common arguments against indirect theories have seemed compelling to many people. The first argument is The Argument from Marginal Cases; the second is an argument against the Kantian account of indirect duties to animals.
The Argument from Marginal Cases is an argument that attempts to demonstrate that if animals do not have direct moral status, then neither do such human beings as infants, the senile, the severely cognitively disabled, and other such “marginal cases” of humanity. Since we believe that these sorts of human beings do have direct moral status, there must be something wrong with any theory that claims they do not. More formally, the argument is structured as follows:
- If we are justified in denying direct moral status to animals then we are justified in denying direct moral status to the marginal cases.
- We are not justified in denying direct moral status to the marginal cases.
- Therefore we are not justified denying direct moral status to animals.
The defense of premise (1) usually goes something like this. If being rational (or autonomous, or able to speak) is what permits us to deny direct moral status to animals, then we can likewise deny that status to any human that is not rational (or autonomous, able to speak, etc.). This line of reasoning works for almost every property that has been thought to warrant our denying direct moral status to animals. Since the marginal cases are beings whose abilities are equal to, if not less than, the abilities of animals, any reason to keep animals out of the class of beings with direct moral status will keep the marginal cases out as well.
There is one property that is immune to this line of argument, namely, the property of being human. Some who adhere to Worldview/Religious Views might reject this argument and maintain instead that it is simply “natural” for human beings to be above animals on any moral scale. However, if someone does so they must give up the claim that human beings are above animals due to the fact that human beings are more intelligent or rational than animals. It must be claimed instead that being human is, in itself, a morally relevant property. Few in recent times are willing to make that kind of a claim.
Another way to escape this line of argument is to deny the second premise (Cf. Frey, 1980; Francis and Norman, 1978). This may be done in a series of steps. First, it may be noted that there are very few human beings that are truly marginal. For example, infants, although not currently rational, have the potential to become rational. Perhaps they should not be counted as marginal for that reason. Likewise, the senile may have a direct moral status due to the desires they had when they were younger and rational. Once the actual number of marginal cases is appreciated, it is then claimed that it is not counter-intuitive to conclude that the remaining individuals do not have a direct moral status after all. Once again, however, few are willing to accept that conclusion. The fact that a severely cognitively disabled infant can feel pain seems to most to be a reason to refrain from harming the infant.
Another argument against indirect theories begins with the intuition that there are some things that simply cannot be done to animals. For example, I am not permitted to torture my own cat for fun, even if no one else finds out about it. This intuition is one that any acceptable moral theory must be able to accommodate. The argument against indirect theories is that they cannot accommodate this intuition in a satisfying way.
Both Kant and Carruthers agree that my torturing my own cat for fun would be wrong. However, they believe it is wrong not because of the harm to the cat, but rather because of the effect this act will have on me. Many people have found this to be a very unsatisfying account of the duty. Robert Nozick labels the bad effects of such an act moral spillover, and asks:
Why should there be such a spillover? If it is, in itself, perfectly all right to do anything at all to animals for any reason whatsoever, then provided a person realizes the clear line between animals and persons and keeps it in mind as he acts, why should killing animals brutalize him and make him more likely to harm or kill persons (Nozick, 1974: 36)?
In other words, unless it is wrong in itself to harm the animal, it is hard to see why such an act would lead people to do other acts that are likewise wrong. If the indirect theorist does not have a better explanation for why it is wrong to torture a cat for fun, and as long as we firmly believe such actions are wrong, then we will be forced to admit that indirect theories are not acceptable.
Indirect theorists can, and have, responded to this line of argument in three ways. First, they could reject the claim that the indirect theorist’s explanation of the duty is unsatisfactory. Second, they could offer an alternative explanation for why such actions as torturing a cat are wrong. Third, they could reject the claim that those sorts of acts are necessarily wrong.