I don't think applying good or bad quite fits the Elementals. They just really are. Their care is for the natural world and balance. They don't tend to get tied up in mortal concepts of justice, right and wrong, morality and ethics. Its like asking if a river is evil or a tree. The sun gives life but it can also kill you in the right circumstances.

The Elementals do care how nature is treated and frankly there are conjurers out there who are part of groups that aren't very elemental friendly. However I suspect at you don't have to have the Elementals permission to use conjury. Is just doing it in twelveswood, where the player learns it, you run the risk of pissing them off if you don't do it with their blessing. Its abuse of nature rather than use which rubs them really the wrong way.