The book Predictably Irrational[0] has a good section on how making the salaries of CEO's of publicly traded companies public information is one of the things that has helped lead to their salaries spiking so incredibly in recent years. It's been some time since I read the book but if I remember correctly the argument is that making them public basically removes any social embarrassment or taboo around having extravagant salaries. If sharing salary info becomes more commonplace in other areas I wonder if you'd see the same thing or the exact opposite.
[0] https://www.amazon.com/dp/0061353248