This opinion feels alien to me. Some of the most useful information you can have in a company is around salary/bonus/commission structures. From a purely self interested perspective, knowing this makes you a far better negotiator around review season. And from an organizational perspective, understanding what kind of things get people their bonus or commission goes a long way to understand what kind of decisions they make and how to influence them.
As a manager, though: thanks, employees with this perspective reduce the number of awkward meetings I might have.