[armored_mammal]

There may be some body shops with incompetent people, but I think there are plenty of competent H1-B holders.

The proper framing is that their visa can be held over their head to extract 14 hour days 6 or 7 days a week and other working conditions and salaries that Americans would not accept or be able to compete with (for good reason).

[gms]

The US government actually sets generous price floors on what H1-B's can be paid to prevent this sort of thing (for better or for worse). An H1-B application specifying a salary that is lower than said floor would be rejected.