> We are sensitive to death but it is the only mechanism I know that would control overconsumption of natural resources.

Also prices. New kinds of mining are invented to circumvent cost restrictions. Otherwise, certain kinds of metals and gasses would stay forever buried as unusable junk.

Also note that fish that are significantly easier to eat (not a lot of bones, easy to farm, etc.) are more utilized. "Trash fish" are usually just full of bones or too much work to prepare to eat in a tasty way.