Does that salary need to be above average at the time of hire, or throughout their entire tenure.
If its the prior then if an H-1B employee stays at a company for more than a few years it actually would come out to being cheaper overall, on top of them being more incentivized to just go with the flow and deal with any BS since their stay in the country depends on it. They have significantly less leverage than a US citizen to stay through grueling work conditions or toxic work environments.
But as I understand it, this is checked during the visa application process. The visa expires after a few years and requires another application for an extension then. So at least every few years, the salary would have to be adjusted upwards to meet the visa requirements.
If its the prior then if an H-1B employee stays at a company for more than a few years it actually would come out to being cheaper overall, on top of them being more incentivized to just go with the flow and deal with any BS since their stay in the country depends on it. They have significantly less leverage than a US citizen to stay through grueling work conditions or toxic work environments.