Agents maximizing their own pay-off subject to perceived game theory nash equilibrium.
Chrysler Financial CEO: "Hmm.. Should I pay back the government now and risk the mid-long term financial stability of the company OR keep the money and be subjected to whatever pay-cuts the government wants to impose on me as well as restrictions on leverage and high-risk strategies, which would both decrease my short-term payout."
(note this is just a hypothesis, I don't actually know any of the details of the case)