Sorry if my reply was a bit snarky.

I think we have a fundamental philosophical disagreement here. You think that human systems should follow human ideals first and only deviate when absolutely necessary. I think human systems should follow natural systems and only deviate when absolutely necessary. I think this keeps us grounded and enables the bottom-up growth and evolution of our civilization.

As such I think it is entirely fair that the default is that prices for services should reflect the resources consumed for such a service. I agree there should be exceptions such as healthcare (up to a certain extent that's negotiated within each political unit) but air travel is definitely not one of them.