You talked about a big buck contest/fund raiser. Your point I assume was that some big buck contests do good. Maybe so, but it's still a contest with prizes. Even if the only prize is winning the contest. I'd be willing to bet the majority of the hunters are in the contest more than the fund raiser.
So, is it a big buck contest disguised as a fund raiser, or a fund raiser disguised as a big buck contest?
If the hunters were really interested in contributing to the cause. It can be done without the contest. Which comes back to the question in my above post.
I'm sure for those who don'tr agree with big buck contests. The above fund raiser is just another big buck contest. The prize, or lack of prizes doesn't matter. The prize is bragging rights.