That is a really great question, I will try and answer it for you:

You can still help people, can't you? Stop trying to be rich, instead use your degree, time and money to help others (who have not consented to be here either), or rescue an injured animal, feed a hungry dog or cat, do whatever you can to help the world. In the end, others will remember you, that is all that is important. The point of you being here will manifest itself immediately when you do something for somebody that they could not do for themselves. Then they will say, "thank God you showed up!", my life would have been so much more difficult without you in the world. Then you will know what the point of it all was.