Banks, the lending industry (including credit card companies, mortgage and student loans), debt collectors, repo men, payday loan stores and check cashers, not to mention the entire legal system, ugh... To me it's sick that they can upend someone's life just because they didn't pay a bunch of bills. Society collectively has the wealth to treat the less fortunate with grace and dignity, with compassion and forgiveness, but it's more profitable to find fault, then squeeze everything out of them and leave them by the side of the road.
A lot of people fold their arms and smugly say "Well, they made bad choices and deserve it all." Whatever lets you sleep at night, I guess.