What are 20 or more examples of good vs. evil in the grapes of wrath?

The book goes much deeper than simply good vs evil. The Joad's and other farm families are kicked of their land. There is a drought and a depression and whatever else that can go wrong basically does. The banks foreclose on their farms and destroy their shacks. I guess that's pretty mean. Society doesn't seem to care as these families, more or less, starve. The Joads go to California looking to pick various crops. This is pre-union or pre standards of any kind so the families are pretty much slaves. That's pretty mean too. Men who try to organise themselves into a labour are crushed. There is a nice government camp that tries to help the farmers, that's good. But then mean men from outside try to start a fight. That's not nice. I think in the end good and evil are pretty relative terms. The Holocaust was evil. The grapes of Wrath, I'm not sure. Sorry I didn't list 20 items. The story is about a social and economic construct that people, even today, accept.