Yeah, the global marketplace of many countries willing to offer cheap labour for securing jobs means that competition keeps and drives the prices down. The only solution is minimum working conditions which vary from place to place, and can make a huge difference.

The UK for example has loads of jobs like fruit picking done by the cheapest labour allowable, in the worst conditions allowable. Those conditions are just legally mandated to be a bit better, they're still not great but the UK can afford and is willing to offer that basic level.