If you consider top-tier fast food chains have an average gross revenue > ~$2M and profits ~$100K, then that means The vast majority of that $2M is being dumped

If you consider top-tier fast food chains have an average gross revenue > ~$2M and profits ~$100K, then that means The vast majority of that $2M is being dumped back into the economy in the form of purchasing supplies, equipment, and labor. The other benefit for those not employed by or involved in the restaurant's supply chain is cheap and convenient food.