Keeping salaries confidential solves all these problems Only if the salary is the only way in which your peer is being rewarded. These sorts of hostilities ex

Keeping salaries confidential solves all these problems Only if the salary is the only way in which your peer is being rewarded. These sorts of hostilities exist quite frequently in companies that don't share salary information, because rewards exist in lots of forms, including promotion, project assignments, shift scheduling, etc. Imagine a company that decided to keep promotions secret to avoid hostilities.