its all semantics.
I would describe the job as "domestice service" (cook,cleaner,nanny,chauffer etc) hence "domestic servant". If you work for the government you're a "public servant". When I've asked people what line of work they're in I am answered "I am in domestice service".
whether being a servant implies servitude is down to your interpretation. being a "helper" sounds like something made up by some agency ( asking for someones help will always get more results than asking them to do it directly - thats called manipulation). I've seen the adverts on TV..
"we urgently need helpers to go to kuwait.. expenses covered to go to interview!"
probably more people fall for it than,
"domestic staff required in kuwait. Agent will take 50% of your salary."
Dont be fooled into thinking that the job is different, just because of how you're asked you to do it. Or indeed your job description.
Maybe if I asked for your help picking mangos I would pay you less than if I wanted you to pick mangos?