They made their money through hard work, luck, or family history. And they spend it and that helps others who make products or services. I'd rather the money be in private hands than in government hands. In government hands the money is wasted.
For those celebrating a billionaire's loss, you should focus less on celebrating someone else's misfortune and more on how you can improve your own situation (so you're less jealous).
You don't know a damn thing about Soros if you think he is just a normal billionaire.