Except Azealia's music isn't mainstream or generic enough to have good sales. Except Azealia has a cult following. Except Azealia isn't a pop star and never said she will be. Except Azealia is an alternate artist.
But then again she managed to pull in over 1 million dollars in from touing from 2012 to 2013 so I'm sure she'll manage to get her green.