All the big tech companies are:

* Employing the people to do actual work for the host company. E.g. A Google H-1B is doing work on google products, for google.

* Paying competitive salaries - you're not going to find anyone saying the FAANGs aren't paying top dollar

This "small time staffing firm" was paying below fair wage, and providing fraudulent documentation about the work they were doing.

If you're super concerned about the "H1-B visa pipeline" you shouldn't be looking at big tech. You should be looking at the "consulting" firms like Deloitte

Because they aren't doing anything illegal. Those companies hire for a real role, and pay an H1-B worker the same as a citizen.