I really don't think that element is an indication of alignment. As FTP pointed out, you could have that Earth guy who could be mafia. Azula's friend, the one with the bending-blocking abilities, can't even bend, so she doesn't even really have to be Fire element despite being allied with the Fire Nation. Therefore, I don't really think Align + Element Cop would be redundant (I just don't think an Element Cop would be that useful, or it shouldn't be, anyways).
##Unvote, ##Vote: Elieson
What's the point of that Eclipse vote?