Part of it is capital. The chaebol completely dominate the Korean economy and any serious competitors are taken out with mergers and acquisitions. The other part is that the model works and the companies are profitable. Sure, they could be more profitable with less wasted time and more productive employees but they already have an overwhelming majority in the Korean economy and they are globally competitive. It irks me to see more productive methods of work that are not adopted but yo can see that in every country.