Why no reverse it though? First, look out for people, then figure out efficiency.
> If unstable market prices result in temporary, unacceptably inhumane conditions for other people, then the most efficient solution is certainly going to be to work within the market-based system to help those people
Why are you so obsessed with efficiency? What is wrong with being a little inefficient if it means that people aren't even 'temporarily' in inhumane conditions. And if they were 'unacceptable' you wouldn't accept them.
> People are freely choosing to exchange their money in return for a service.
As stated in the wikipedia entry for Congestion pricing in New York City:
"This Pigovian tax, intended to cut down on traffic congestion and pollution, was first proposed in 2007 and included in the 2019 New York State government budget by the New York State Legislature."
* https://en.wikipedia.org/wiki/Pigouvian_tax
> Markets are based on the collective decisions of millions of people taking billions of factors into account to create the most efficient outcome for everyone.
So what?