I have so much respect for hierarchy and that is the reason for my curiosity, ever since I started participating in signature campaign, I have seen campaigns where participants of different rank are being paid the same amount and in most instances the hero/legendary, there are reasons for the pecking order in the forum which includes activities and merits, in my expectations it could have been more officially rigid in respect and or subject to this generally in terms of always making the differences according to hierarchy. To satisfy my curiosity I really want to know why some campaigns don't give this due diligence and others does and what is the reason behind it?
I don't really see the point in this post because you don't have right to question the manager and project owners why they have to fix their pay rate the way they chose. This is just like asking a company why they pay the amount they pay as salary as if you know their budget and how they want to go about their marketing. You could have as well ask why different campaigns pay different amount and not a uniform amount for the same rank. It is their campaign, their rules and your job is limited to checking if you are satisfied with the rules before accepting or you bounce.