ok, but what incentives does anyone have to actually look at potentially fraudulent situations, especially if the stock is ripping, as in the case of Valeant Pharmaceuticals? In fact the incentives are so perverse that it pays _not_ to state your research on why the company is not worth what it is. Even the time value spent on research is non trivial.

Your example would make more sense if the car they were selling a what may seem as a perfectly fine Lambo, but in actuality it was a lemon. And the only way to find out if it was a lemon or not is to tear it apart piece by piece.