Take note of every commercial you see and you'll notice that some huge % of them have dead bodies on their balance sheets, poisoned water, coups, criminal behavior. Like how the (unnamed?) main character of Fight Club's job as an insurance adjuster was to figure out if it was cheaper to do a recall or pay off the victims' families.
All that said, yeah absolutely no one even glancing at FTX's books before letting them in the room is very 2008-ish.
The Federal Trade Commission (FTC) does handle fraudulent advertisements and the like.... If they even address your complaint, AND if the complaint comes in your favor, you are still guaranteed nothing.
And the "punishments" are at the level of 'just doing business' for most cases.
With FTX, its when rich people get hit is when the government gets involved. The rest of us can get stuffed.