I do think we may be over-prescribing these to a certain degree, but I know people whose lives are impacted for the better due to medication for ADHD, for example. Its easy to understand when you see someone with severe symptoms one day, then calmer and more focused the next.
Britishcolonialism bad.This goes far before the British. Before the British, there were the Mughals. This part of the indian culture is old and predates either of these two. The caste system has been around forever.
Edit: Bit of clarity.