Double standard?

Today I have read about how the Norwegian Oil fund (which has plenty of billions) throws out some bond shares which are not ethical right, such as Swedish Match, Philip Morris, British American Tobacco, Wal-Mart. That is of course good out of ethical reasons as the fund is a big player on the world markets. But you must say that it is a bit contra dictionary that all the money earned by the fossil oil from the bottom of the North Sea must of course be placed in an ethical way?