Exhibitions of minority art are often intended to make the minority itself more aware of its collective experience. Reinforcing the common memory of miseries and triumphs will, it is expected, strengthen the unity of the group and its determination to achieve a better future. But emphasizing shared experience as opposed to the artist's consciousness of self (which includes his personal and unshared experience of masterpieces) brings to the fore the tension in the individual artist between being an artist and being a minority artist.
If you reject the infinite, you are stuck with the finite, and the finite is parochial. . . the best explanation of anything eventually involves universality, and therefore infinity. The reach of explanations cannot be limited by fiat.