I don't think you are being specific, and you don't provide examples.
I don't think its just restricted to Filipinos, but can be found in all Austronesian cultures (From Madagascar to Easter Island). In fact Philippines is a lot better than places in Austronesia where they don't grow rice, like parts of Eastern Indonesia.and Fuji.
An agricultural economist explained it to me this way about agriculture in Eastern Indonesia, which can apply to the Philippines.
Philippines at the beginning of Spanish colonization (1521), had a population of 750,000. It consisted largely of villages and hamlets, a population of 2000 would be considered large. England had a population of 4-5 Million (1370s pre-black death), even though its landmass was 40% of the Philippines, and all concentrated on one island.
With such low population density, people focus on crops or crop methods that minimize use of labor. The intensive agriculture you find in places like China/Japan, didn't really exist in the Philippines until the last
The second aspect is the Philippines didn't have large centralized government (China) or a feudal system (Europe) where the powers to be demanded "taxes". Taxes make people more aware of time and productivity. If you don't pay your taxes, often meant death.
To better understand this issue, one should look at Indonesia. The dominant ethnic group the Javanese, are general seen as more hard working and organized than other Indonesians, because Java had large centralized kingdoms and higher population density than the other of Austronesian. An estimated 5 Million people lived in the Javanese areas of Java (1/4 land mass of the Philippines).
In addition, the Javanese during the Dutch colonial period, endured 70 years of what the people called the Cultivation system, where they were forced by the Dutch to grow cash crops, in which they would pay in taxes every year to the Dutch. Here is discussion of the social impact it had on Java.
http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1143&context=commpapers
The rest of Indonesia, particularly Eastern Indonesia, people are less motivated, less organized etc.One it has to do with population density. There is preference for low labor intensive crops like Cassava and Sago. In some parts of Eastern Indonesia, people traditionally worked for 3-4 weeks of the years harvesting and storing Sago. I talked to contractors in Eastern Indonesia, and he said he pays his workers daily. The reason is if he pays them monthly, workers will usually take their monthly pay check, spend it, and don't show up for work for 2 weeks. When the money runs out after the two weeks, they show up.