The bank – the monster has to have profits all the time. It can’t wait. It’ll die. No, taxes go on. When the monster stops growing, it dies. It can’t stay one size.
– John Steinbeck
The Grapes of Wrath, Chapter 5. The insatiable greed for profits by the bank is highlighted here. A metaphor likens it to a rapacious monster. This of course makes it easier for representatives of the banks and landowners to behave inhumanely towards the tenant farmers.