Perhaps they were working on behalf of their sponsors and doing their dirty work for them. The whole system stinks. They hold a threat of deportation and cancellation of visa over your head and for some poor souls it is a question of life and death. The laws and rules all around the place actually help guys like this and others in higher positions to play around and abuse lower level employees and to threathen them into keeping quiet . Besides the salaries they were paid are a shame and a disgrace to the very people who sanctioned this visas and jobs