But really, neither does Marvel. Hell, 7 years ago no one would have pegged Iron Man as the driver behind the highest grossing super hero movie. If you put together a good movie, it doesn't matter.
There are plenty of "out there" DC properties similar to Guardians of the Galaxy. Booster Gold comes to mind. Green Arrow would be great, especially the treatment they had come up for him a few years back. Suicide Squad would be AWESOME. It all comes down to taking risks and the confidence to make a good movie.