I suspect that UPS has a large contingency of MBAs who are better qualified at striking that balance than I am, which partially explains why I don't work there and why they haven't asked my advice on the matter.

I can only control the part of the transaction that originates from me. My commitment is to seek out the solution that seems, to my level of understanding and investigation, to result in the fairest treatment of workers given my lack of price sensitivity.

To do anything less is to give in to capitalist nihilism. It's tempting, but I'm not there yet, personally.