Seen elsewhere, but I wholeheartedly agree:-
If an Air Traffic Controller screws up and kills people, he is charged with manslaughter and faces jail.
If an aircraft mechanic screws up and kills people he is charged with manslaughter and faces jail
If a soldier or policeman screws up and kills someone, he is charged with manslaughter and faces jail.
If you screw up while driving your car and kill someone, you will be charged and face jail.
If a social worker screws up and a child dies, there will be handwringing MPs, commissions, reccommendations, promises that it will not happen again, social workers off sick on "stress", etc etc.
But NOT a single one of those who let a child die will ever face jail.