I'll add the other side to your story. (Full disclosure: a member of my family has worked in mental health, though without prescribing any drugs.) Both in people I've known personally and in case studies written by a doctor who believed that many of the worst mentally ill people are not "untreatable" despite the psychiatrists' opinions, it has been clear to me that meds sometimes provide a vital breathing space, so the patients can at least make good use of the hardware inside their heads, and thereby get themselves better, given a software expert (that is, a therapist) who can reverse engineer the bad software in their heads and help them uninstall it.
The problem seems to be that therapists who have enough imagination and perseverance (and, in extreme cases, enough physical courage) to help these patients, and enough respect for them to prescribe minimum rather than maximum amounts of medication, are scarce and expensive. You think drugs are expensive? They are, but the cost of a therapy session can pay for a lot of pills. So there tends to be a bias towards pills. Easier to whack the hardware with a hammer than investigate the software ... but running bad software on good hardware still isn't going to work -- and please don't take that personally! Plus it may take time, and money, to tell whether the problem is in the hardware or the software (or in both).
I have also heard stories, by a Stanford professor no less, where anti-psychotic meds were prescribed in "wanton" doses in mental institutions. So although I've never been through what you have, I am sure your stories are as real as mine. On the lighter side ... well, it wasn't light for him ... I once knew someone who suffered from depression, so his doctor had him sent home from work on (quite generous) disability pay; the only problem was that most of the things that made him feel good and could have lifted him out of depression were part of his job. Argghhh.