David Stockman did not define "mainstream banking" but "The point is, this is not the free market at work. This is central bank money printers and their Wall Street cronies perverting what used to be a capitalist market."
I would define Mainstream banking as lending money in the fractional reseve 1/10 - deposit/loans manner. The Wall Street so called Banks were Hedge Funds taking giant risks for mega profits as long as pyramid scheme was building up. Once it caved in they convinced their crony bud Sec Treasury Paulson and Bernanke to bail them out, plain and simple. Hapless Bush said 'duh' end of the world as we know it, 'uh' OK....
I am not against government or regulations, that would be silly. I am sorry that we the sheeple have been duped into thinking that our current version of 'democracy' is not a crony Kleptocrat Big Gov / Big Business partnership where the laws and regs are written by the Bigs, for the Bigs, with Pay to the Pols so the Big Banks and Multi National Corporations can pillage and call it something else, then shift the losses to the public. Over and Over..... http://www.zerohedge.com/news/guest-post-emperor-naked