(1) Provide humane and scientific treatment, care and highest attainable degree of individual development for the dependent wards of this State;

(2) Provide for the delinquent such wise conditions of modern education and training as will restore the largest possible portion of such delinquents to useful citizenship;

(3) Promote the study of the causes of dependency and delinquency and of mental and physical disabilities, with a view to cure and ultimate prevention; and

(4) Secure, by uniform and systematic management, the highest attainable degree of economy in the administration of the state institutions under supervision of the Division of Child Protective Services consistent with the objects in view.