Interesting.
In terms of gameplay; obviously there isn't a huge amount to improve on. It's simple; it works. The ball could do with a non-default texture, and some better lighting would go a long way.
In terms of the message - it's an interpretation of the theme which I haven't seen before and I give it big originality points for that! It's something to think about!
But... if I hadn't have known that the prompt was about messing with what success means; I don't know that I would have understood what you were trying to say with the game... I would have just been frustrated.
So improvements would be - how to more precisely give your message within this framework?
It's a difficult question to answer I think :)