Is a Refrigerator Good or Evil?

http://link.springer.com/article/10.1007%2Fs11211-008-0082-z#/page-1

(Sadly this paper isn't published in an open journal, but Springer do provide the first few pages as a sample)

This paper shows that despite what you might thing, people constantly assign moral values to inanimate objects.  The authors note that in some circumstances this is understandable, such as heirlooms and instruments of torture, but they were also able to show that people assign moral values to everyday things too.  The values they assign are consistent between people, so there really does seem to be a real judgement here, although it's not clear how it works.
It turns out people rate most things as slightly morally positive, so the answer to the question in the title seems to be that refrigerators are good, not evil.