Not to mention the social stigma that still(!) haunts depression (and virtually all psychological injuries). Few physical injuries have any sort of stigma - and the ones that do are usually associated with depression. Certainly it would be better if that stopped entirely (and, as with homosexuality in general, and gay marriage, it seems to be happening).

That said, I actually have sympathy for the stigmatizers. From their perspective a perfectly healthy person with no overt negative stimuli is profoundly unhappy for no reason. That's got to be frustrating because it's completely and totally opaque, untouchable, alien, and unaddressable. The condition stymies the compassionate person, making a mockery of their good intentions. That is frustrating, even angering, and is probably the cause of the ambient hostility that lingers around depression. Depressives behavior appears stubbornly self-destructive, which essentially and irreducibly thwarts the will of those that care for them.