I see what you're getting at, and yeah that sort of just world would be nice. You could ask "is everyone fairly compensated?" now though, and many people would not think to consider the various disparities that exist - the current system, to their mind, is fair.
So you have to look at the data, gather the facts, and force the issue:
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Is everyone fairly compensated?
Yes
But, it looks like a woman is paid 20% less than a man for the same position. Is everyone fairly compensated?
Yes. (Insert sexist reasoning here).
Are women compensated the same as men?
No.
Why is that fair?
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You could repeat this same thought process for so many other examples, where the general concept of fairness is rooted in inequality, bias, and prejudice.
