Crowds are certainly better judgements of value than individual people are. If it does lead to sour grapes, it's a benefit for the employee - she realizes that

Crowds are certainly better judgements of value than individual people are. If it does lead to sour grapes, it's a benefit for the employee - she realizes that either the company is not one worth working for and she ought to leave, or that he is not worth it for the company and must improve performance or look elsewhere.