If a few companies in Singapore violate law because of unpaid salary, workers will be able to change job to get better job.
But, if so many companies there pay extremely low salary, workers won't have a choice to change job in Singapore.
It shows how horrible it is when most of the people ignore the regulation.
In Japan, the similar incident have happened. Yamaguchi Group, which used to be the biggest gangstars in Japan, was not fully monitoredby police, because the group was bigger than police. But, after separation of the group, police try to arrest them positively.