Rhetorical question is rhetorical

One question sticks out in the whole Malian situation. How come some rebels (in Libya) are of the good guys, while other rebels (in Mali) are of the bad guys? Gaddafi was also fighting Al Qaeda, among other groups. And Libya, after the West-supported victory of the rebels hasn't become either more modern, or more democratic, or more peaceful - just on the contrary. It's looking very similar to Somalia. The parallels between the two neighboring countries are inescapable. So really - why these rebels are bad while those are good?