"Shock Doctrine" or "Disaster Capitalism" is a well-known idea where catastrophic events are used to push through massive capitalistic reforms the public would not accept otherwise. In post-disaster chaos, people will be seeking someone to blame and naturally want to grasp at any solution, but there is no reason capitalism has a distinct advantage. In fact, people have already decided who is to blame for the current crisis - the GOP. So there will be a huge reaction away from GOP policy.
They only succeed because they are cynical enough to exploit the disaster immediately after a crisis (of their own making?) After years of slowly fleecing people, keeping unemployment high, and calling on average citizens to make all the sacrifice while the top few percent are better off than they were before the banking crisis, people will be more primed for a New New Deal.
Hiring back all the laid off government employees, instituting massive projects to rebuild our infrastructure and a complete rejection of austerity is unthinkable now - but if the GOP indeed imposes a self-created depression, we should be prepared to "capitalize" on that, and add some small bit of silver lining.
The plutocracy is almost certainly ready to take advantage of a possible US default on the debt ceiling. It is imperative we not allow them to ride their own disaster to achieve their goals, not only because of the human consequences, but because they will have incentive to create disasters to impose their will. But after bank-bailouts and an oppressive degrading of their standard of living, people will be more ready for an uprising that makes Occupy Wallstreet seem quaint.