In almost every profession - whether it's law or journalism finance or medicine or academia or running a small business - people rely on confidential communications to do their jobs. We count on the space of trust that confidentiality provides. When someone breaches that trust we are all worse off for it.
A father may turn his back on his child brothers and sisters may become inveterate enemies husbands may desert their wives wives their husbands. But a mother's love endures through all.