[Question] Who captures economic gains from life extension treatments?

Assuming that there are economic gains to be had at all, which participants in economies are best positioned to capture those gains?

Important because this determines the best business plans for life extension companies to pursue.

  • Do they sell to corporations? individuals? governments?

  • What are plausible deals they could cut? e.g. would a corporate buyer want to offer life extension to its employees conditional on those employees remaining childfree?