For those (including myself) who wonder whether a 100x cap will really change an organization from being profit-driven to being positive-impact-driven:
How could we improve on this?
One idea is to not allow investors on the board. Investors are profit-driven. If they're on the board, you'll likely get pressure to do things that optimize for profit rather than for positive impact.
Another idea is to make monetary compensation based on some measure of positive impact. That's one explicit way to optimize for positive impact rather than money.