It’s irresponsible to say her doctor has some explaining to do based on your anecdotal experience. Patients have varying responses to anti-depressants and she may have exhausted all options including ECT, etc. It is quite tragic and a good example how mental illness doesn’t respect the typically sought after predictors of happiness such as wealth/support/success.
+1 I know first hand someone who suffers with depression and has suffered all their life with it. They’ve tried many many medications including ketamine and they only dull the depression temporarily but it then rages back. It’s very very difficult to treat and combined with a chronic disease, it’s even worse.