Let's face it if you are on a fixed Income ( like so many here) you must make your life fit the Budget not try to live life a life that your Budget won't sustain for long. IMHO
These numbers seem about right from other stats I've read before.
Also have a lot of professional Filipino family who are very open about their salaries.
Nurses make about 6k Pesos a month
School teachers about 10-15k pesos
Even a barangay official makes about 15k pesos