First of all, there is no term migrant worker in the West. Therefore, there is no such thing as wages for migrant workers.
Second, in the West, the legal and social security systems are relatively complete, and under the constraints of the law, business owners dare not default on salary arrears.
Thirdly, nothing is absolute. When a company is unable to pay its workers, it will be forced to go bankrupt, sell off its assets, strictly control individuals, and use the future wages earned by the other party to compensate employees.