Also, in many cases it is the governments of these third world nations who limit the wages, not the companies who build there. Yes these multi-national companies are atracted to the third world by lower emplyment costs. However many soon find that they must begin to offer more to keep their employees coming back to work.WARNING- anecdotal evidence being sited here...
Case in point. A very good friend of mine is an engineer at Hoover. In the early nineties Hoover built several plants in Mexico. They were attracted by low wages and big tax encentives offered by the Mexican government. Soon after these palnts opened Hoover began to notice a pattern, in their emplyees behavior. After the workers were paid, they would not show up for work for severak days. With money in their pockets, many chose to party rather than come to work. Hoover sought to provide more to the employee, as an encentive to come to work, but were barred from paying any more by Mexican labor laws. The company began to offer free health service, dental service, eye exams for their emplyees and their families. The kicker was, the employee had to maintain an acceptable standard of attendance to qualify.
To end this, its not always, or only the Big, Bad American Corporations who are to blame for the exploitation of the third world labor market. Blame rests squarely on the shoulders of the politicians from these countries as well.