[Question] How should I dispose of a dangerous idea?

I have a dangerous idea which, unlike most of my dangerous ideas, is unencumbered by any laws or non-disclosure agreements, so I can dispose of it as I wish.

In order to demonstrate that I do in fact have a dangerous idea, I would obviously have to disclose it, but disclosure would not prompt the development of countermeasures other than 'wow, hope nobody else thinks of that'. Any implementation of the idea would probably result in its full disclosure to the world, meaning, no entity could both implement the idea, and keep enough of the idea a secret to prevent others from using it.

I believe implementation of the idea by myself to be immoral, but am conflicted on the ethics of simple disclosure, which I believe would lead to its' implementation by others with more flexible ethics.

Altruistic silence is probably my default position, but from a strictly rational standpoint, is there some way to get paid for my continued silence (other than the joy of living in a world ignorant of this idea)?