Undergraduate / a change which occurred last summer - General Topic Question [5]

Hey guys!

First time posting, so I thought I'd point out that this site is spectacular. The essays posted here have given me many great ideas.

Now onto my question:

For the Princeton supplement essay, you're supposed to write about an experience that changes your outlook on life. I wrote a change which occurred last summer:

Prior to this year, I was always motivated by self interest. In the essay I talk about doing service in order to challenge myself and expand my interests, rather than to be altruistic. I do not mention doing anything just to get into college, but I think it may be implied.

After the summer, I became a more caring person. I started caring about the communities I was involved in, the people around me, and even people who I didn't even know (ie. community and global service).

I talked about my transformation in the essay. Will this be looked at as an honest student growing out of selfish tendencies? Or will it be seen as just another wannabe ivy who does everything just to get into college?

Thanks in advance! Happy holidays.
-Avesh