There are certainly many cases where Aristotle's definition of envy would adequately describe instances of zero-sum biases. In particular, when one observes the suffering of others in contrast to those with immense wealth. This can often be seen in comparisons to the west and the third world, as well as in the concepts of "core" and "periphery" in world systems theory. The problem with using the word envy, as I see it, is that the word in its currently accepted form leads people to assume that dissatisfaction is on behalf of the agent alone and not on the behalf of others. It would only reduce the clarity of language surrounding the subject.