What is Steinbeck’s attitude toward the bank?

Answer 1

Did you read The Grapes of Wrath?

In this book, Steinbeck likens banks to monsters. He really doesn't like the bank because they preyed upon hardworking, innocent farmers. To Steinbeck, banks had an evil intent and only cared about profit (they were unwilling to work with poor farmers who needed a little help during the Dust Bowl/Great Depression. The protagonists in the book were farmers.