If your company is so ethically bankrupt that you can't afford the risk of someone who would only reveal things that are of critical importance to the public, then maybe you aren't the "good guys" anymore.
The thing is -- everyone has something to hide, which is why that adage is wrong. But not everyone is hiding a scheme they've cooked up to flaunt laws (and lied to regulators for years when they came knocking) which resulted in tangible deaths as a result. If you are worried that you have a scheme like that on your books, then yeah you should avoid hiring whistle-blowers.
His career has taken an ironic downtown, ironic enough to land him as the centerpiece in a NY Times article. That will certainly help his profile.
Exactly.
Fortunately, a great many companies are not hiring him, so it’s not like not hiring him will expose that we’re doing tons of illegal stuff.