Some articles on devalued:

Citizen Advocacy Organisations - The Challenge of Creating Real Relationships
... relies on the art of being able to identify two people (one 'valued' and one 'devalued') who seem likely to make a personal connection - and on bringing them together in a way which leads to such a ... tend to revolve around existing social expectations for the 'devalued' person ... of the work may even be to add to the devaluation of the 'devalued' person (however effectively the 'volunteer' helps the individual with particular problems or issues in their life) ...