Fairtrade helps people in other countries get a fairer deal.... right ?

Year 8s preparing for exams will be familiar with the impact of Fairtrade and similar schemes on the lives of workers in other countries.
Usually Fairtrade is described as being a benefit for the workers, as the social premium that is paid as part of the scheme is used to fund schemes which benefit the whole community.
This Guardian article from the weekend suggests that there might be some alternative views on the benefits of the scheme, and those wanting a fuller picture might want to read it.