You surely can't be that naive. There are numerous things a foreign company can do, such as leaving the country entirely. Threaten to withdraw unless China and Foxconn begin to take these issues more seriously. At $13 billion a quarter in profit and $100 billion in cash, it's not like Apple doesn't have a choice as to where their products are made.
Another idea is to offer financial incentives for factories that meet strict safety requirements. Offer them better terms, longer contracts, etc.
oldstrangers, beatle, who you are debating with, seems to be a PR rep for Apple, he comes into every thread that mentions Apple and advances the positives and deflects the negatives. He doesn't respond to most other threads, it's Apple ones he goes for specifically. This sort of single-topic commenter doesn't match the usage pattern of real people, they are always working for someone.
Another idea is to offer financial incentives for factories that meet strict safety requirements. Offer them better terms, longer contracts, etc.