How can you allow all of the suffering on this planet to go on without intervening (ie a child dying of starvation every five seconds, plagues, natural disasters, AIDS, child pornography, human exploitation and slavery, malaria, diabetes, etc etc etc)?
how can we appreciate the gift offered to us if we have no frame of reference for the opposite? simply telling us is not enough for mortal man, we need to see and feel to understand.
Are you content with just being an intelligent hairless ape that just cannot resist the primitive urge to fling poo at people passing by, just like a monkey in the zoo ?
Do you stay in the field and do the work that you accepted, or do you continuously run back into town and give people black eyes, or maybe push them down the stairs, because they don't do what you do ?