They are usually also being shafted.
My first graduate job was in sales after I answered an advert for a marketing management training program.
You were told you were self employed (no sick pay, hols etc) but actually subject to employment type control. Commission only-£10 to sign a mug up for Gas and electricity or £4 for one.
We got taught how to railroad thickos into signing.
There was motivational crap, standing in a circle, clapping, and getting to hi five round the circle if you hit your targets.
I went back to catering for more money and more self-respect.