Progressive art can assist people to learn not only about the objective forces at work in the society in which they live, but also about the intensely social character of their interior lives. Ultimately, it can propel people toward social emancipation.
It's like a novelist writing far out things. If it makes a point and makes sense, then people like to read that. But if it's off in left field and goes over the edge, you lose it. The same with musical talent, I think.
In the NFL, every practice could make or break you. If you dropped one ball, you'd worry about getting cut.