What ideas about equality and inequality are brought out in the story "The Lesson"?

In Bambara's "The Lesson," Miss Moore attempts to teach
the children about the savage inequalities that exist in socioeconomic status.  Miss
Moore takes the children to F. A. O. Schwartz where they see toys that are outrageously
expensive.  The children cannot believe that people can actually afford to buy such
expensive toys, but there at the shop, purchases are being made.  Outside the store, the
children see people who would never be able to buy things from a place like F. A. O.
Schwartz.  Miss Moore explains that there are real differences between social classes,
but she also explains that the children do not have to be bound by their present
existence.