Why don't we mind our own business and sort out the myriad problems within our own (leaking) boarders.
Because the world is a lot smaller now, and life is a parallel project not serial.
One thing that that has never changed though, is if you don't help out your friends or strategic partners, your enemy's will, and or take advantage of it. Another words your damned if you do, and damned if you don't, the only question is how do get less damned.