Have you ever looked at the DoL classifications? Very easy to make a level 3 "software engineer" at 135k a level 1 "programmer" at 65k and everything in between depending on your comfort. And it's all above board and by the law.
If a company is following a bad law doesn't it make more sense to make the law better than lambaste the company for hand-wavy "abuse?"
http://www.flcdatacenter.com/faq.aspx
For instance a level 1 "programmer" in SF makes about 70k. A level 4 "Software Developers, Systems Software" makes about 158k...
My point is that the argument that h1b employers must and therefore do pay the prevailing wage is incomplete with out knowing the employees skills and the wage data the employer chose to set as the prevailing wage.