Isn't that what happens during the entirety of contract negotiations? The entire contract has parts that are negotiated and might somewhat benefit one particular group (demographic as you say) over another, and that can be construed as having taken from one pot of money to put in another.

Improving lineholder workrules vs reserve (and vice versa), increase hourly pay vs retirement (401k) pay, improve scope vs using that neg. capitol for something else, etc. etc. etc. Pick any part of the contract that has been negotiated and someone out there can claim it was done at the "expense" of others.....