Same thing used to happen in FCA.
One very well known Flight Supervisor copmplained directly to the manager after years of this crap system. the IFS manager gently (not) replied that "we don't have the money to pay you more". Yeah, right!! Have you seen how much profit FCA made last year??? Where is all that money going???
Anyway, this FS then decided to demote herself from N.1 straight to N.3 right there in front of her......You can imagine MD's (ugly) face!! Oh Dear!!!!!!!!!
Very well done!!!
She's now enjoying her money much, much more, and has no responsibility at all....bliss!!!