To play devil's advocate here, if those people completed their sentence and they are being resocialized they have access to what any regular citizen is supposed to access.
OTOH if they haven't been sentenced yet and the electricity company knows of it, I think they are walking on thin ice if they don't report it. I'm sure there are heavy sentences for keeping a blind eye on trafficking.
The other point worth mentioning when money laundering happens, tax evasion or even misappropriation of state money the bank is facilitating those crimes which really stands by itself.
So now I'm really wondering what the legit use case of the anonymous accounts is supposed to be.