Why disability studies are at the centre of social and medical science?

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Thanks for your detailed answer.

Disability studies is at the centre of a raft of critiques of dominant social and medical science, on several grounds including the following:
1.Scientists and researchers commonly treat oppressed or “other” groups as objects, and do not take into account the perceptions held by oppressed groups as valid data.
2.Research on the “other” often furthers the needs of the already powerful, and does not forward the needs of those who remain objects of science.
3.Information gained from research into oppressed groups is not used to their benefit and may in fact be used better to oppress them in the future.
4.Actual research participants (“subjects”) often hear nothing about the results of the data they have provided, and gain nothing from the process.