Here we see sportsmen losing on purpose to earn some extra money. Thus, the goal is to earn money, but the method is illegal.
Here, I don't know if losing on purpose is illegal, but it is definitely immoral. Bringing your other teammates down just for money is almost definitely wrong.
The match-f ixing I believe it should be one word scandals in cricket and football that have surfaced recently point out this phenomenon.
I think you should add a smoother transition between the second and third paragraph. In the second one, you are talking about the good points of achieving goals through any means, but in the third you abruptly introduce the dark side of the quote. When you said, "for many people, the goal is to earn money," I didn't expect you to completely turn it around and add a dark, evil connotation to earning money. You should ease it in, saying something about how earning money illegally
is immoral in the first sentence.
Otherwise, I think you organized the rest of your thoughts pretty well. 45 minutes is definitely not enough time to ponder and organize your thoughts effectively, but you're pretty good at it. (I was never good at the SAT essays ><)