Imagine anger when you live in poverty, you work 9 hours/day (minimum, from workweek in Korea) manual labor, some people at work die or get disabilities in work accidents. As a worker you know that everyone lives from surplus you produce, the food, etc, programmers do not make food. You can only do programming since they made food for you. So as a worker, you know you do something useful, right? So you deiced to talk with your boss, you told him all this and ask for better working conditions, little less working time, etc. He fires you. On the next job, you try to not make the same mistake, you organize collectively and strike. But this time, government use force to stop the strike and kills someone of your friends. Not surprising that some workers will be very angry.