There's plenty of evidence that banks intentionally mislead consumers through predatory lending schemes, signing them for (and misrepresenting the terms of) loans that they knew that the borrower would not be able to pay back. They did so under the explicit premise that the bad mortgages would be lumped in with other investment products and then sold off.

A lot of people were defrauded. The economy is still trying to recover. I don't think people who lost homes or are struggling to find work and make ends meet would consider any of this to be an internet trope.