I actually think "paradox" is a perfectly acceptable word in the context used. The common usage meaning - contradiction - is particularly apropos.

https://en.wikipedia.org/wiki/Paradox

edit: fixed nasty typo

But also the "paradox" in this situation is that it's perfectly doable to meet the contradictory needs of value for customers and profit for investors at once. Many such dilemmas have paradoxical both/and solutions.

I'd say "conflict" is better term than contradiction or paradox, since we're talking interests and desires rather than logical propositions.