Workers on an H1B are more abusable though - if they lose the job they have something like 30 days to find another one or they have to leave the country entirely.

So you talk a good game about work life balance and then after you hire an H1B worker and bring them to the country you can spring 60 hour weeks doing tedius things and many won't be in a position to say no.

The salary might also seem higher to somebody who doesn't understand the cost of living in the US (and how many things are not paid for via taxes like healthcare).