I think the analogy is close. With complex multisubspeciality patients in the end the final decision rests with the attending of record so even if subspecialists disagree a final decision will be made by the hospitalist or intensivist. Essentially inpatient medicine is like a dictator with advisors.
These debt talks and the economy are analogous to if you had 4 intensivists managing the same patient and they all had to agree if an order is placed. Confounding this is that one of the intensivists is willing to let the patient die to prove his/her point.
That's the problem with our current hyperpartisan climate in DC. (Not that I'm advocating a dictatorship...)