The transparency laws aren't the cause of the discontent. The cause is the fact that current employees are underpaid compared to new recruits. Businesses are just upset that they can't shaft their workers.
"US pay transparency laws result in workers realizing that their employers are trying to underpay them and this results in workers being discontent," is the truth. This is the whole point of transparency, which I assume is what you are getting at. The transparency doesn't share any of the blame however, so the wording of the title is unfair.
Sunlight is the greatest disinfectant.
I like how it's assumed your wife or any other exec reliably knows their worth.
> One of her direct reports got a promotion and when another found out, he complained. Meanwhile, he did less than half the work of the other.
Metrics used for measuring amount of work done are reliably unreliable in many fields.