Edit for those who are apparently thinking this is some sort of troll: Why can we look at code, say a scaling problem, and say "the answer is not a bigger server or a tweak on the existing code base, but a rework of the core components to work horizontally" and get kudos, but when similar questions are asked of government/financial systems, it is instantly and unfathomably bad?
As to why it's "instantly and unfathomably bad" to get rid of regulation: It seems to me that regulation, most of the time (and for most financial "problems") has worked pretty well. Other countries haven't had any where near as much trouble with, for e.g., the recent housing crisis, because they have had better regulation in place. So, At least as far as I can tell, it looks like regulations work fairly well. It's certainly better than no regulation.
There are already huge amounts of regulations in all sorts of fields, such as education, medicine, pollution, the environment, politics, etc... So we know how to make regulations work. There are certainly problems with regulation but it seems better than any alternative I know of.
So, and this could just be ignorance (or a lack of imagination) but I don't think the problem is in the concept of regulation. I honestly can't think of a systemic fix that wouldn't make things worse.
As far as it goes, the US has far more of a problem when laws and regulations are gamed by insiders for their own benefit, at great expense to everyone else. Another way of framing it is basically the "1% vs. the 99%" debate that's been going for the last year or so. So maybe that points at a systemic fix -- open government, especially open regulation, so it's much harder to game the regulations.
(SOX is just one part of the argument, though IMO the weakest part.)
SOX was a corporate regulation in response to Enron's abuse of deregulated energy market in California and the 2001 tech bubble burst.
The 2008 meltdown was due to deregulation of the mortgage and derivatives markets (and also a bit of regulation that promoted bad loans to poor families. )