If someone asked me, what I believe is most important for society at large. Then I would say that a rich and vibrant culture is absolutely important in order to sustain a thriving civilization.
However culture alone cannot sustain a civilization. You need the necessary foundations in order to support and sustain the system.
Once again, I am reminded of these words by John Maynard Keynes. This is a need of our times:
…Economic policy must reflect an ideological vision; it must be inspired by the ideals of a good society. And it is evident that we are faced with failure of vision, with a crisis in the aims and objectives that economic policy should serve. In 1926, Keynes defined the political problem as a need to combine three things:
“economic efficiency, social justice and individual liberty. The first needs criticism, precaution, an technical knowledge; the second, an unselfish and enthusiastic spirit that loves the ordinary man, the third, tolerance, breadth, appreciation of the excellenciesof variety and independence, which prefers, above everything, to give unhindered opportunity to the exceptional and to the aspiring”
….We need to bring the institutions that foster this triad of efficiency, justice and liberty up to date.”