They were leaping to their deaths because the insurance payout was equal to many years of pay... They installed the nets first, but what really stopped it is that they cancelled the payouts. Migrant workers come from rural areas, a month's pay gets eaten up by expenses, rent, food, and also the entertainment that comes with living in the big city. Filial duty is huge in China, it's against the law to treat your parents badly. A big payout with your death is a super easy way out to appease your parents.

If you know anything about Chinese culture, then you would know that each and every one of the employees who you're getting told "worked too hard" is fighting for more hours. Pictures of people falling asleep on the factory line is some kind of proof that they're being overworked? How about.. go anywhere in China and see people sleeping on the job. Even the 1.5 hour lunch break where 30 minutes is spent eating and 1 hour is napping is pretty much a standard.

China has fantastic overtime laws and regulations. The new generation of employees will get in your face and complain and there are a lot of systems in place to help them accomplish this.

You think what? They were firing people for not agreeing to work overtime? Southern China is suffering from worker shortages even with throngs of people migrating to the major cities. Imagine a city, with a population larger than New York and Los Angeles combined, suffering from worker shortages. Workers in China change jobs like they change outfits.