How can this change.

Nike claims it pays decent wages, but its detractors claim that only a tiny fraction of the £70 cost of a pair of its shoes goes to the workers who make them.
Nike has been criticized for its employment of child labor in Cambodia, but the company defended itself by saying fake evidence of age could be bought in Cambodia for as little as $5.

Labor union: an organized association of workers, often in a trade or profession, formed to protect and further their rights and interests.