Jones is a douche, he killed a card, and cost the UFC thousands of dollars.
Jones was fighting a guy on 8 days short notice...he's been training for weeks/months to fight a guy on that day, Chael wasn't. Chael is under prepared for Jones, is moving up in weight having not fought there in years, and Jones turns it down ruining the entire card, it's really selfish of him honestly. Lets be real, even with a prepared Sonnen the odds are in Jones's favor tremendously, give Sonnen 8 days notice and...come on man, you're just being selfish by not taking it. If jones was worried about losing his title he should have said he wouldn't have risked it.