When it comes to making some (any) kind of difference in this world, most of the people doing it aren't that different from you and me. Most of them don't have any “special privileges”, they are not particularly “advantaged”, and they often come from broken homes and horrible circumstances, with limited skills and resources.
Yes, it can be amazing to travel to other countries on humanitarian or mission trips, or volunteer at a homeless, woman’s shelter or a nursing home. But one of the most significant ways you can make this world better, is by raising your children well, and teaching them to be kind, loving, and considerate. These are virtues that seem to be fading fast in society today.