The Goldman Sachs fiasco,(even watched "The House of Cards" on NBC last night), and I am not happy with my own conclusions, but here goes (Will probably upset some).
First, ALL control in any market, is in the hands of the buyer, not the seller.
Second, as the seller, Goldman, in my opinion did nothing illegal. No-one was forced to buy.
Third, there is no law governing morality and/or ethics (There are laws against fraudulent activities, but, if you do your homework, and you don't like or understand the deal, you walk).
Fourth, if you say "Yes" to any deal and you do not do your own DD, you deserve what you get, imo.
Fifth, the overlying factor in all the Triple AAA rated "packages", was Greed. Greed on both sides: Buyer and Seller.
As I said, I am not at ease with what conclusions I came to, but if we try to legislate against stupidity, we, as a society, will overdose on government (assuming we can control and eliminate corrupt government).
We are not a perfect society, but we must be allowed to correct our own mistakes.
Good Luck to all!