Incorrect.
I have been involved in social care for many years.
Every care/residential home I have been involved with have been paying good salaries. Higher than most retail outlets, as an example.
Add to that the paid breaks, pension schemes, paid holidays, double time on Christmas and New years day, time and a half on other bank holidays, enhanced rates at weekends, staff support schemes....the packages offered are very good.
The foreign staff are not cheap staff. Everyone gets the same package, regardless of nationality or immigration status.