Akashic_Librarian, for a 16-year old, you're found at a relatively high level of consciousness and I'm writing to you in the words of encouragement. Therefore, I suggest that you make the effort of researching these two 'phenomena' as your next steps.
Why do you equate capitalism with something evil? I urge you to read
this excerpt from Atlas Shrugged that tc33 posted in another thread. You may have also noticed Steve occasionally quoting Earl Nightingale: "Nothing can take the place of money in the area in which money works." What money is used for simply reveals each person's appraised value of themselves.
The other piece of guidance I want to share is regarding your self-esteem. If you are bothered by remarks against you
that you know aren't true, then you're not strongly in tune with who you are, and ultimately, knowing that you're part of something bigger that transcends and dissolves such remarks into unconcerned irrelevance.
Yes, what I'm saying is that you should start from yourself. You can't change the world to the better in a greater way than you can change yourself to the better. Altruism alone isn't the answer to producing most optimal impact.