I still say that the reason that we have very skilled but undisciplined drivers is that a lot of these drivers (jeepney, taxi, bus and truck drivers) are not properly trained and educated. Without training and education, these drivers do not learn about, much less abide by, rules that are designed to prevent and to minimize accidents. Also, lack of proper education leads to lack of courtesy for others.
I felt very much like 5speed's hk friend when i first started driving. Although i am used to it, i still get very much affected by bus or jeepney drivers who feel the need to cut me off or race my car. I find my traffic situation here in novaliches worse than metro manila as i have to deal with tricycles and bikes. These drivers are even worse as they like to weave in and out of your car.