Ah but you're wrong. If you've raised a child you'll know it's not "spontaneous", it's a long arduous process of constant correction. A child raised thinking it's own whims are the most important thing (and being mandated to consider others, which seems to amount to collectivism in your book) is a brat & may possess a modicum of self-control but will only use it towards his/her own ends. A society of people like this cannot survive. I suspect that a majority of all collapsed empires thruout history had this in common (a fractured society where people we're obsessed only with themselves or their group within society, and, even more so, a complacency based on the belief that the way things are in the moment is some sort of "natural order").
The "free market deciding" is basically people's whims deciding, like a child deciding he wants this toy & that toy. If you let him have whatever he wants he will never be happy just as people are not particularly happy despite an ever expanding array of consumer goods available.
You restrict a child to teach him the value of things. Creative expression should not be limited (expression of any kind really as long as not inciting violence) but there's nothing wrong with protecting resources & preventing pollution for the future (just as you'd make sure a kid ate just enough for the day while saving food for tomorrow).