Ipad work labor

In my opinion IPad work labor in China is completely unfair to the people who work there. Many people are exposed to harmful chemicals, extremely bright and unfit working conditions and temperatures. I presume that many people have contracted many sicknesses and physical injuries because of working in the unsafe factory. They work from the morning to the night in a factory that should've been torn down long ago. When that fire broke out and some many were killed or fatally wounded that would make many people think to themselves; what is more important the the death and injuries of hundreds of hardworking people or a few pieces of meaningless technology. I do not understand the fact that all these powerful corperate officers do not want help out the area where most of their employees are. I understand to get as many products out as possible they need to keep everyone working. But with the billions of dollars of revenue they collect each year why cant they simply give better  working enviornments to their hardworking and faithful employees who work their hardest from day to night.