What are some good questions about the novel The Grapes of Wrath in chapters 17 through 21?

In looking for a means to review the important concepts
and events depicted in John Steinbeck's The Grapes of Wrath, I
would expect there are several important questions one might ask him- or herself in
Chapters 17-21.

First, I believe it would be important to
ask, "How is the importance of family in evidence in these chapters?" Family here
applies not only to those related by blood, but also to the extended family made up of
people who have joined together to travel westward in hopes of finding a better
life.

Another important question would be directed to how
the lawmakers fail to create and follow laws that protect everyone: "How are the laws
followed by the police unlawful?" The laws established are only for the select few:
those with land and money.

Another question might be, "Who
would you describe as the "haves" and the "have-nots" in this story, and why is this
distinction important? Obviously those who "have" do not want to share with the migrant
workers (the "have-nots").

Another question might address
financial issues: "How do the wealthy and the bankers control the economy in California,
which directly affects the migrant workers who are trying to start a new life?" Keeping
wages low and costs high controls the economic progress of the migrant workers; these
issues also run small farmers out of business as well.