It's really not the agreement. When I signed that inch think set of documents, I simply agreed to be bound by what was included in that set of agreements - nothing more. And that agreement contemplates default, and provides the lender very specific remedies in the case of default. It's a business transaction, not a moral one, and both sides to that transaction will do (or can do without violating some moral mandates) EXACTLY what is in their financial best interests to do.
If you miss ONE credit card payment, is it 'moral' for the credit card company to jack your APR to 100%. Not IMO, but if they can they will do it without blinking an eye, because it's part of the agreement you signed. It's just ludicrous for one side of a transaction to be bound by some moral duty when we all know the other side is motivated entirely by maximizing profits, period.
And you would demand that a CEO of one of your investments take the 'immoral' action of strategic defaults if that CEO determined it was in your best interests as shareholder. He would and probably should be fired if he or she put some 'moral' duty ahead of his obligation to shareholders to maximize returns.
Lots of people have said that if the loan was with a person, the rules change. That's correct IMO because most of those loans (or at least as I contemplate them) are "secured" only by our word as ethical people. In those cases, I'd go to great lengths to repay the loan because nothing but our individual morality secures the loan - that is the security I provided.
The very short answer is for loans, like all business transactions, I expect the golden rule to apply. How do I expect the other side to treat me? My last mortgage was with a massive loan subsidiary of one of the Wall Street banks. I KNOW what their approach is to morality in business....HAHAHAHAHAHAHAHAHAHAHAHAHAHA...LMMFAO!!!! Where's my bonus!!!