Sorry Beppi, I have to disagree with you.
Yes, you are right, ICA collects quite a lot of information (with and/or without your consent, we don't know) about you before deciding if you will be granted PR status.
However, "spouse of SC" and "PTS - Professional, technical Personel and Skilled Workers" are two different schemes. The quota allocated for each scheme are different and the criteria for each scheme are also different.
It's no doubt that with OP's profile, applying via a family scheme (spouse of SC) will help her to have 95% to 99% of chance getting the PR status after less than 3 trials (I am quite confident (~70%) that she will get her PR status right in the first application)
The family scheme is created to help a foreign spouse integrate into Singapore society as soon as possible. Hence, the criteria of income, education, contribution etc are much less than the PTS scheme. The people who compete with OP are other spouses - some of them haven't completed a single degree, some of them cannot even speak English, and guess what, they still get their PR status after 3-4 trials.
I would confidently say that, under family scheme, as long as:
- The applicant's sponsor has a fair job (3-4K/ month) and have a good record in CPF Board.
- The applicant's sponsor has never been jailed
- The applicant has a job (any kind of job which draws more than 1.4K a month)
- They have been married for some times (1 year+)
Then the applicant will be granted a PR status, either in the first apply or second apply.
Meanwhile, applying under PTS scheme is much more difficult. The applicant will have to compete with a much different set of people with lots of PhD in the hot area (artificial intelligence, biomedical, green energy), or professional workers with a high monthly income - some of them can be up to 22.5K/ month (new PEP criteria - 10% of EP holders are having this range of income) or 30K/ month (ONE Pass criteria - 5% of EP holders are having this range of income).
How can a Bachelor's Degree with an annual salary of 50-55K compete with these applicants? It can take you a damn long time until you get your PR granted, or even never. (I personally know an Indonesian, non-Chinese family just got their PR after 8 trials).
Another question may arise: She got a Sporean husband, so why is she applying under PTS? She plans to divorce is this? Aiyah this lady ah, let her wait for some more time okay...
ICA will consider all relevant factors during a PR application - it does not matter if you apply with the intention of family ties or work PR.
-@beppi