I particularly like that she wants to tackle important issues and problems, rather than go with the crowd and have a "normal" career in tech or VC land. I admire that.
Having said that, precisely because the topic of "underfunded" is so ambitious, I am not 100% sure that 1) Her current view and proposed approach works, or that 2) open source infrastructure is worth funding (from a strict RoI perspective).
It seems to me that a more meaningful answer would be to find a "hack" to involve governments in things that are obviously crucial for the public good; my current view of government activity, however, is particularly dire.
So... Stuck with a potentially better idea, that I doubt could happen in our current situation.
It was basically what happened to G+ and FB over the last few months, but to every website. Preventing that is probably worth pitching a few percent of your annual capital budget to infrastructure projects.