List two of the tangible and/or intangible ways in which state governments improve society

Two tangible ways in which state governments improve society would be through the construction of public facilities like libraries and roads, and an intangible example would be through welfare programs. 

Law and order are two intangible ways in which state governments improve society.
Explanation:
Tangible within the 'safety' of a law enforcement agency we will see, feel and act with. Intangible within the law itself that provides associate degree 'invisible' protection. 

The Economy. Tangible within the quality of life we have a tendency to relish e.g. product and repair obtainable to the United States and assistance available ought to we'd like it. Intangible thanks to the laws and workings of economic science that the typical man doesn't see or can't management, however, effects the tangible.