Ranking as Medical Officer.. Does It Matter?

I graduated from a residency training where we didn't use the terms "medical officers" nor "medical specialist". They were only used in public hospitals.

I looked for job opportunities left & right, was not accepted, and only found/learned the hard way that being a resident-on-duty (ROD) all over again is the only option left. I swore to myself that after residency, I won't be agreeing to any 24hour duties again but it seemed that I had to break my own promise. In a way, it can be of very good use to me since I'm planning to take the diplomate exams of PAFP at the end of the year (as they say, experience is the best teacher). Though it may sound that I'm "moonlighting", I had no other choice. I applied for work at a nearby public hospital and was eagerly accepted. But the item being offered to me is just "Medical Officer 1". At first, I just agreed without knowing what that truly means. Then last week, a colleague told me that that rank is INappropriately low for me. According to her, her rank in a public hospital (where she is currently a resident) is "medical officer 3", and kapag diplomate status na, the rank goes up to "medical officer 4" (or some would say that it's already "medical specialist 1"). I thought twice.

I know I am after the training/experience but I have mixed feelings regarding the item/rank being given to me (as MO 1). I feel like I stooped down to GP level when in fact I'm already trained & a consultant/specialist in every way. Siyempre, CFP (Certified Family Physician) na ako. As of now, I haven't signed the contract yet (a blessing in disguise na rin siguro). Probably it's a sign that I should still look for something else &/or a better opportunity will come in my way. I'm afraid that if ever my consultants, co-residents hear about this, they might say bad things like I'm just bringing utmost injustice to my previous training.

Right now, I'm torn - should I stay for experience? Or should I leave? 

Does the rank/item as medical officer matter, in terms of my professional career, financial gains? Will it look good in my resume when I apply for future work?