Interesting idea, but I think public companies just don't have the culture for this level of self-criticism. The job would inevitably become corrupted somehow,

Interesting idea, but I think public companies just don't have the culture for this level of self-criticism. The job would inevitably become corrupted somehow, subject to spin and influence from the powers within the company. I think what should be happening is that investigative journalists in the financial sector should do a better job of finding sources within public companies, who are willing to leak information about practices and policies that are against the company's publicly stated positions, and/or are hurting shareholders, employees, the environment, and so on. Example: why don't we see detailed leaks about NSA actions at the ISP's, carriers, and large web companies?