"The market works perfectly" isn't something you can say without defining what the market is supposed to do. If you consider "the market" to only have to care a

"The market works perfectly" isn't something you can say without defining what the market is supposed to do. If you consider "the market" to only have to care about itself and not any external effects it causes then sure, but that's like saying car owners don't have to worry about air pollution because it's "outside the car". The market is intrinsically linked to its effects on the environment it's in and I would certainly consider its failure to account for that a failure. To put it in CS terms, if build a "world peace" gAI with a reward function that doesn't include "not killing humans" and it starts killing humans, the argument of "it's working perfectly" isn't really a useful one if you want to stay alive. Adding a negative term to the reward function is equivalent to marker regulation, yet while we have entire fields of study dedicated to the first, the latter is frowned upon.