Then people might try to game the system. I think you present the excess to one person each day that receives votes as the best (public) goal matched. It incentivizes people to publicize their goals, which helps the business, and also makes them more likely to fulfill the goal. You will still see gaming I'm sure, but at least it will be vetted by peers.

In a way "burning" the funds already does distribute them to everyone else.

Since that is now money that is forcibly and irrevocably taken out of circulation, so therefore everyone else's money is worth slightly more because of it!

Goal: "Set a goal that makes me eligible to receive a portion of the rewards".

Done!

Destruction of value is not destruction of money. If I were to buy some extremely expensive memorabilia (a pristine copy of Abbey Road, signed by all of the Beatles) and burn it in my back yard, that wouldn't be destruction of money.

While BTC, ETH, XMR function like currencies and can be traded - they are not recognized as a currency in most places