Well, you probably don't want to write this in your essay, but this is how I see it in my mind:
3 points
I like science
I like social interaction*
I like money
-I want to do something that makes money, but I don't want to do something I would hate.
-I don't want to do something I like, but make little money.
-I'm a very social person, and I like science, and I like money. Sounds like doctor or pharmacist.
(Sure, I may be "greedy" to some people's standards for using money as a major factor for a career choice, but I think you would be stupid for assuming that. Would I be happier being a lab tech making 40K or being a surgeon making 400K? Both have science, which I like, but one just happens that one has a distinct advantage. Also, you can save lives every day and provide a huge impact on society. Now is that really so greedy?)
Some may ask why I didn't list helping people. Well, maybe its just me, but I find that response as pretentious. Seriously, how do you know that you like helping people, in a medical sense. I mean, yeah, you have to like helping people as a doctor and I would assume most people would like it, but I just think it should be worded slightly different. "I would like to help people" would be better, IMO. Its just like what my mother said to me when I said I considered doing an ROTC program and joining the Air Force. I said that I wanted to fly an airplane, but I never flown. She said "How would you know if you've never flown a plane." I've flown on a plane, but I've never been in the cockpit. And some say, "I've volunteered at hospitals, etc." but I think the Volunteer - Doctor thing is analogous to to the Passenger - Pilot comparison I made above. You've been around it, but you haven't actually DONE it yet.
I don't know, just trying to make you guys think. I just wrote an essay, so I'm in that deep thinking kind of mood.