A common standard of ethics needs objective morality, otherwise it’s just popular vote like the one you describe. What would you do if the popular vote didn’t match your views?
That is a big flaw in WoW’s setting regardless of how others like DC or Gaiman’s tracts have handled the subject. Not to toot my own horn, this matches up to a thread I made on a similar subject (some of which, especially the title, aged far too well given what came out about certain devs in the lawsuit mere weeks after I posted that).