Why is 24KG produced so badly?

[ViscountViktor]

If you look at the names associated with the album: Dave Stewart as producer, Chris Lord-Alge mixed it, Ted Jensen mastered it, why on earth does it sound as if they recorded Stevie's voice through rubbish car speakers and passed it off as a finished product?

I love 24KG but I feel if the quality of the vocals had been imrpoved, the whole album would have gone up a level.