You looking at this from your own perspective not from recruiter’s POV. They don’t care whether you are grateful or not; it’s just a job to them (nothing wrong

You looking at this from your own perspective not from recruiter’s POV. They don’t care whether you are grateful or not; it’s just a job to them (nothing wrong in that). At the end of the month you just a number in column “converted” or as they probably called “placed”. Of course some people with tons of skills will be easier to place than others, hence recruiters will push harder.