When you speak of impact you speak of men that has every reason to be seclusive, yet they sacrificed their comfort zone to make other lives better.
You don't need to have all the resources in the world to make an impact. You don't need to know the person to make an impact, you don't even need to expect anything in return, just like @sirknight who stunned me with his SMT launching declarations. What a sacrifice.
Impact is a selfless act towards grooming someone to becoming a better person, without expecting anything in return.
What impact do you have for your generation?
Always ask of what to give and not what to get...