I 100% agree that the society, political and economic conditions can alter the nature and meaning of art, because society defines as art is interpreted, the economic conditions reflect the art, which is produced and political conditions, the effect, if the art is produced at all.
I also think it depends on the artist, because some of the artist creates his works on the basis of what is happening at a time, and some artists to work through their thoughts and deeper meanings of life that do not vary with the social, political or economic ...