This voting strategy makes the most personal sense. My voting choices are not based on abstract political philosophy, but are decided by my own desire to have a secure income. In a representative democracy, sometimes we must go against our personal good and choose a course of action that is in favor of the common good. This is the sacrifice that all of us are called to make. It's the price of promoting freedom.
Presidential elections are abstract.
They are rarely about practical matters like utilities or the improvement of transportation systems. Local elections might take on such issues, but they are not the stuff of which a spectacular Presidential campaign is built on. These are not issues that I am required to deal with on a daily basis. Maybe I should concern myself with such issues daily, but I can live quite comfortably without ever thinking about any of these things. This is due in large part because others take on the responsibility of thinking, acting, and speaking about these issues for me.