I believe society should be very careful when they impose negative labels upon people, especially disabled people, because the effects for the labels can last for the rest of their life. Declaring someone unfit for work for example can leave people in a mindset where they feel can never work so they never try to work or improve their situation, leaving them unnecessary unemployment for the rest of their life.
I also seen and argued that many children are incorrectly labelled with learning difficulties and other conditions, which is not negative in themselves but the way others inappropriately response to the label can have major consequences to their quality of life in their adulthood which no one in interested or worried about when they impose the label. Wrongly used labels can make people live unto that label and so often make it impossible to change.
If you like what I say, have a look at my site at www.simonstevens.com or follow me on twitter, @simonstevens74, or even leave me feedback on +44 (0)121 364 1974 or email firstname.lastname@example.org