I agree with HK2008. I've seen one pretty messed up situation where the family had an elder who had had a stroke plus other illnesses and to go into a public nursing home would cost 6000 or something like that per month, as a consequence they decided to hire a helper to look after the grandfather (cheaper option) and live in their tiny flat as there is little by the way of another choice for the family. That or else turn him out brutally and hope social services does something for him. They were pretty poor and just getting by.
I mean honestly, if the whole family has only $10 for pork and the helper gets some - then to be fair, that family must on some level be good. I'm sure faced with a similar situation most mothers and fathers would reduce their own inatke for their children and the helper would go without.
Doesn't make much sense to me to be hiring a helper if you're in such financial straits. There is a reason why immigration checks your income and bank account (of course it's not too difficult to make it look like you've got plenty of money in the bank, though) before they okay a foreign helper application.
Well, $6,000/month for public nursing home versus $4,000/month PLUS food, housing (water, electricity, transportation) doesn't seem like much difference to me. The main difference is having the elderly person at home where he/she can experience more of a normal life surrounded by family members. If people are truly not able to afford to feed their helper and themselves decently better to apply for public assistance, in my opinion.