I get hit by this rather strange question with a 
fair degree of frequency:

Who are you?

It's only strange in context. What the asker 
means is who are you to take it upon 
yourself to try to change another person?

Well.  That's a slap in the face, isn't it?

The question stems from my explicitly stated 
willingness -- eagerness even -- to assist 
others in their attempts to become better 
people.

I don't really know what the issue is.  I wait 
until these people seek me out.

Almost always.

The question implies a certain degree of 
discomfort with my assumed arrogance, which I 
find startling and silly.

Life is an excercise in absolutely unwarranted 
arrogance.  Who are you?  What do you 
do that justifies the space and resources that 
you consume?  What value do you have?

I'll leave that to you to ponder.

As for my answer to the question...

Who am I?  I am happy.  Happier than you, happier 
than any of your friends, happier than most 
everyone you've met or will meet.  That 
emotional state alone justifies my actions as 
a teacher, role model and guide.

I am tired of people trying to make me feel that 
the respect -- even the adoration -- of others 
is something that I should be uncomfortable 
with.

I am also tired of being told that I should 
refrain from trying to change people simply 
because to do so is arrogant.

A crippling fear of responsibility and a 
lethargic refusal to act do not constitute 
higher moral ground.