Assuming that did happen - which I doubt - what's so wrong with that? Presumably they're only willing to commute 3 hours because they feel they're getting a better deal than what they could get locally? Why would you force them to choose what they consider a worse job?
Nothing wrong with it per se. The externalities of it are a disaster, though: carbon depletion and pollution, traffic congestion, traffic related injuries and death, feeding the automotive industrial beast, less time for family and community commitments, less sense of belonging, etc etc...
... until eventually it doesn't matter, because all accommodation in the city is owned by investors who don't actually live there