Seems like your opinion is quite skewed. Have you observed/seen families that treat their maid well? Must I as an employer announce to the whole world on how well I'm treating my maid?
There are employers who are like you mentioned, but it's not ALL. & honestly speaking, it's the maids who drive the employers to do such things by LYING & being DISHONEST.
No one will treat an honest maid like that. Just like how we work hard to gain our bosses' trust, they also need to work hard to gain their employers' trust. My maid worked to gain my family's trust & I dare to say that she's very well treated in my family. She has free reign on food & usage of her mobile phone which is paid by us. She has never had to pay for anything from her own pay, not even her undergarments or remittance fees. She has adequate rest & is well rewarded for her efforts. There's no 'promotion' but there's pay raise & bonuses.
Maybe you are super mum who can juggle all the kids & housework, but it's not everyone's cup of tea. Maybe you got a super hubby who prints money, but not every husband is like that. Whatever it is, you shouldn't be judging mummies who chose to get a maid for whatever reason. & as an outsider, you do not know what happens exactly in each family with the maids. If you have lived with a dishonest maid before, you'll understand the frustration.
Another food for thought here:
I've met ppl who refuse to get maids even though they can afford cos they feel INFERIOR. The maid will be basically doing THEIR JOB as a stay at home mum & they will have no placing in the family anymore. They go around criticising other ppl's maid & claim that they can do a better job. But fact is, they are tired all day, dissatisfied with themselves and their 'achievements' and worst of all, their hbs are complaining about them all day long.