Human Rights, Article 27 : Is Art a want, rather than a need?

During what is Human Rights week this week, I was inspired to take the opportunity of delivering a McCabe as a chance to develop my own knowledge and understanding of the relationship between Human Rights and Art. And there nestled between Education (article 26) and social order (article 28) sits the arts (within article 27).
I was purposefully explicit in noting where this article can be found within the declaration- between education and social order. Because I initially found this to be jarring. Education and social order are so fundamental and found within the material realm along with shelter, food and other practical necessities- vital for survival. Whereas Art, Art surely belongs in a more intangible world as something much more transcendental. How could something so metaphysical be relevant to our basic rights as humans? 
So, is access to art a privilege rather than a right? A want, not a need? 
It's safe to assume that many would consider Art to be subservient to many of the other rights, like education and social order. And I have often seen the judgemental glint in the eyes of those who ask what I teach, when I reply with - Art. My role as Art Educator is probably seen as a paradox in itself...