How about the fact that its unethical and unmoral. And it perpetuates and accelerates the problems facing our economy, country, and citizens. People just don't care because their share of the problem get divided up and spread out so thin, but they are still literally pounding one more nail into our fragile ass economy's coffin each time they do this.
If it were unethical or immoral the economic actor would bare the cost associated; unfortunately the legal system in the USA is no longer ethical or moral. Because of the immoral and unethical legal system unethical bankers made immoral loans to potentially unethical borrowers.
The bankers don't give a shit because they got paid a huge origination fee and shifted all financial risk to investors (foreign funds, pension funds, etc.).
Sure some people took advantage of easy credit and a housing market that went up every year and never down; but the bankers could have prevented 100% of the mess by not making shady loans.
All of us who own / pay for real estate have seen huge declines in the value of our assets. The blame lies with the politicians and bankers NOT the maid who was given a $500K mortgage with ZERO down. Sure she should have known that she couldn't pay monthly for 30 years AND she MIGHT not be able to sell the house a year later for a $100K profit; however it is the bankers responsibility to make sure the borrower is credit worthy. Caveat Emptor works both ways.