We are Limited by Imperfect Information.
Of course we also know that "perfect" information isn't always available when we make these choices. We are at a disadvantage with our limited understandings so looking at short term gains is not always helpful. Without perfect information it is often wise to make choices so you maximize opportunities. Limited information poses a risk.
Make Choices that Maximize Opportunities.
Likewise, it is helpful for being strategic about your life and about business. Having some goal that maximizes opportunities in the future allows you to weigh and balance the different options using the same vantage point. If you consistently apply the goal you will be able to connect all of your choices.
Evaluate Your Choices
Finally, it is also helpful in reducing stress. If you focus on the long-term then small set backs are not the end of the world. You just adjust and keep on moving toward your goals. There will be lots of different roadblocks and obstacles on the way so you might as well minimize their stress value.