The potential consequences of whale shark extinction include disruptions to marine ecosystems that rely on their presence for nutrient transportation and maintaining trophic food webs. These disruptions may in turn impact other marine species, including those harvested for human consumption, but any effects on human fisheries would likely be indirect and not as dire as those caused by overfishing, climate change, and habitat destruction.
Ultimately, whale sharks have minimal direct significance to human life compared to other threatened species that provide food, support ecosystem services, or even serve as sources of scientific and medical insights.