Getting to the point where a cause goes from being a terribly daunting task with a handful of adherents to an acknowledged success with momentum and many allies is a rarity.
If the world does well, gold will be fine. If the world doesn't do well, gold will also do fine... but a lot of other things could collapse.
To those who have always wondered how they might best serve the wider world, wildlife conservation is, at its core, one of the purest forms of giving.
If you want psychic gratification, one of the greatest ways is to know that you've made a real contribution to saving a species from blinking out during your lifetime.