Earlier quoted context omitted.
>Imagine what would happen if there were five $70k salaries and one $165k salary for six people doing the same work. People would suddenly get very uncomfortable. Isn't that the entire point of the first exercise however? If the 165k salary isn't completely obvious, then it should make people feel uncomfortable - they are being shafted.
If you're getting the $165k, you're not going to be very enthusiastic about this exercise. The modular-arithmetic alternative is better, at least in terms of political stability: they figure out that there's an average of $86k. Then the people making $70k all negotiate up to $90k and, even if getting shafted, people are happier.
Why not? I'd be completely fine being the odd one out, especially if it helped to encourage my lower-paid co-workers to renegotiate their salaries.
The whole point of this exercise, IMO, is to determine if there's inequity, and how much. I'd want to know the full salary range, not just the average. Companies rely on you knowing very little about your peers' salaries; more information can only help you, even if it might make you feel a little bad.