By firing violators are they not 'cracking down on abuse'?
https://www.mercurynews.com/2019/03/26/h-1b-prison-for-visa-...
No, but he hired contractors who violated rules his ultimate boss, the President, has made a policy priority. As the head of a state-owned corporation, political instincts are part of the requirements.
I mean, how would you crack down on drug dealers?