We really can’t close our eyes to what happens around us because in the end we need each other, right? We are all living on the same planet, we share the Earth. Whatever you do (or don't) doesn't only have an impact on your immediate surroundings, but resonates throughout the world. In a world where people need each other. Same thing with HIV / AIDS patients- they may be the ones having the disease but you and they are still connected and dependent on each other, often a lot more than you'd think. So remember: we’re all in this together.
Yes, look around. The world is not just about you.