Its up to the employee to ensure they do not get away with it.
This is literally victim blaming.
Oh, you were exploited by the system? Well it's your fault for letting them do it, silly peasant!
You literally do not understand the mechanisms behind systemic exploitation.
The original claim wasn't that they will simply just "refuse to pay", it is that they will take advantage of the convoluted system in order to exploit the vulnerable and desperate workers they are responsible for.
Trusting the legal system that was designed and run by capitalists to uphold the interest of workers is braindead bootlicking. Literally. Fuck off your naive bullshit.