The factory mentality is society's attempt to numb the weird out of you and replace it with average. It's easier to mold someone and make them normal than give them the freedom to be themselves.
9 to 5 is a relic of industrialization which has nonetheless persisted through to today's equivalent of the railroad, the internet.
There's still incredible value in showing up and conducting face to face meetings. But with Facetime, email, and Slack I don't see why it's necessary to be in each other's presence all the time.
The misalignment between our virtual and physical worlds has the opposite effect: we feel the need to be available all the time. Always on culture is a recipe for burnout, as we work ourselves into inanition.
To escape the industrialization of the corporate mold, we need new rules. Working from home on Fridays is just the start. Digital detoxing on the evenings and weekends should also be a mandate.