Not a job for VCs
What they need is someone who's sitting on so much cash they don't know what to do with it and can't come up with anything better than passing out small fractions of it to various charities in even smaller amounts for fear of making the charities implode (which they are apt to do when given too much money). Such a person would mind far less the prospect of losing a 100 million on a good cause, and maybe they haven't forgotten their tinkering-with-technology roots.