You have two types of companies. 1. Companies who value innovation and what to get the best talent possible. Money is not really an issue, its all about talent

You have two types of companies. 1. Companies who value innovation and what to get the best talent possible. Money is not really an issue, its all about talent. 2. Other companies are just using immigrants to cut costs. Immigrants here on a work visa do have somewhat less leverage than a US citizen worker when negotiating salary.