So, where do you go from here? Give up on medicine? Or reform it? If the latter, criticisms had better be concrete & discriminating -- instead of abstract & all-encompassing -- with suggestions for better practices.
Moreover, the medical profession doesn't exist in isolation from the rest of social relations. Modern discrimination against & oppression of the disabled -- especially the Great Confinement of the disabled & other groups that Foucault discusses -- arose in response to capitalism that demanded the confinement of the unproductive & the disruptive (unproductive & disruptive from capital's point of view). Medicine is but a vehicle through which capital's class power has been exercised. Capital's power over experts (medical or otherwise), however, is contestable. The best example may be the removal of homosexuality from DSM in 1973, in response to the demand by the rising gay liberation movement.
While a multitude of micro-politics of power that pit doctors against patients, teachers against students, lawyers against clients, social workers against participants in state-funded programs, etc. are not unimportant, focusing upon them in such a way as to put capital out of sight (of theory & practice) is in the end counter-productive. In fact, capital would love you to think of doctors, nurses, orderlies, & other care-giving workers as your main enemies, just as it would love women to think of men as our main enemies. Micro-politics, instead, should be waged with a view to how they fit into the big picture: capital's exploitation of labor; & socialists' project to abolish it & establish the system of production for human needs & desires, not for profits.
Yoshie