(1) Every director shall be indemnified by the National Bank against all losses and expenses incurred by him in, or in relation to, the discharge of his duties, except such as are caused by his own wilful act or default.
     (2) A director shall not be responsible for any other director or for any officer or other employee of the National Bank or for any loss or expenses resulting to the National Bank from the insufficiency or deficiency of the value of, or title to, any property or security acquired or taken on behalf of the National Bank or the insolvency or wrongful act of any debtor or any person under obligation to the National Bank or anything done in good faith in the execution of the duties of his office in relation thereto.