Not a negative one, not that I can think of. On the other hand, I can see a MASSIVE ripple effect to do what the GOP seems to think is the answer, which is to let everything bottom out, which is that EVERYTHING will bottom out, property tax collection, home values (for everyone, not just those who are foreclosed on but their neighbors and on and on), the unmooring of communities, increases in poverty and homelessness and a hundred other things. There is only ONE thing that has stood in the way in terms of addressing this highway robbery of a real estate bubble, and that has been the profit margins of the banks, period. Even Ron Paul, God bless him, said in one of the debates that he would rather have seen the borrowers bailed out than the banks that engaged in so much fraud, both illegal and (thanks to Republican Phil Gramm and co.) legalized fraud, to enrich those at the top literally at the expense of this country's stability and wealth. &^%$ers.
I admire your effort to find reason behind what comes down to pure nihilistic greed, but trust me, if there is, Frank Luntz/Carl Rove/Heritage/Freedomworks haven't come up with it yet.