How has your presence effected your inner circle? Do you feel that if you were never here things would be different? Of course it would be. Not saying that everything would be so terrible without your presence but you have made an impact.
How different would your friends be if they didn't have you? Who would be parenting your kids? Everything around you is how it is because of the people. That mean teacher is being a little more fair because of you. That racist boss will keep his comments to himself in the privacy of his own thoughts because of you. Your mother is more trusting of teens because of you. But realize you also could be a hell raiser and it could be the other way around.
That woman wouldn't have that black eye if it weren't for you. That child would still be alive if you would've said "no" to that beer at the club. Not all people are positive but we all play a part in this world. What side do you play.
Would people wish you were never born?