Organized criminal groups are more scrupulous. They just want your money, or to be information brokers. They won't publish your name, address, phone, social and god knows what else to the world.
I could give an extreme example and say that this kind of information disclosure puts stalking victims at risk, but there's a million more reasons we protect the privacy of individuals. Criminals simply have no reason to do this kind of thing, but the script kiddies think it's hilarious.
Your bank manager does not make IT policy. Please do not shout at him.
The lamers who released the information could have easily blacked out parts of all of any sensitive information, or disseminated other kinds of proof of their attack. Then you could still be angry at your bank without getting people's personal information.
I could give an extreme example and say that this kind of information disclosure puts stalking victims at risk, but there's a million more reasons we protect the privacy of individuals. Criminals simply have no reason to do this kind of thing, but the script kiddies think it's hilarious.