Sending that man home was an effective death sentence and a way to blame it on his wife. Regardless of who she is, that poor woman could not possibly be equipped to deal with that someone in that condition.
It's horrible to imagine, but the only way to deal with these sorts of situations in some sort of practical way is something that resembles institutionalization. Single individuals are trapped by misguided ideas on virtue/morals etc. cannot possibly do these jobs. What a horrible thing for society to inflict upon them.