i know, big newsflash, all these firms suck: http://money.msn.com/top-stocks/post.aspx?post=2f6a0c7b-5c4d-4b41-9ee0-419bea58e2e6 Greg Smith didn't just resign from Goldman Sachs (GS -3.32%) on Wednesday. He brought a big match and torched the place on his way out the door. The big match was Smith's devastating New York Times opinion piece that had Wall Street in a whirlwind. It's a revelatory piece about the Wall Street firm's moral decline in the nearly 12 years Smith worked there. Now he describes the environment as "toxic and destructive." An ongoing theme in Smith's piece is that Goldman treats clients like personal ATMs, wringing money from them at every turn. Sales meetings are focused on how to make money off of clients, not how to help them, he writes. "It makes me ill how callously people talk about ripping their clients off," he adds. The most memorable part of the whole thing? In the past year, five executives have called their own clients "muppets," sometimes over internal email, he adds. Cue the theme from "The Muppet Show"! Smith said he wrote his piece as a wake-up call to the board of directors. The company needs to focus on clients again, because without them it won't make money. "Weed out the morally bankrupt people, no matter how much money they make for the firm," he writes. "And get the culture right again, so people want to work here for the right reasons."