[PeterisP]

Most countries don't wish to grow an industry "slowly with respect to human lives" even if they have enough food to feed themselves.

As it shows in practice all over the world, if people are given the chance to go from subsistence agriculture to sweatshops, they do so eagerly, intentionally migrating a thousand miles away from their families if needed so. You'd need to apply a lot of force and bloodshed to move them back away from those jobs to the farming; and when given a fair vote, those workers press for many things but not on slowing down industry growth, rather the opposite.