I'm curious to hear other's thoughts on they think would be useful.
Please don't hold back ideas! There's very little harm positing silly or unlikely ideas, but there is some potential value (perhaps more than you realize).
Inspired in part by calebo's comment here
Charity Entrepreneurship, but for for-profits.
I have the reverse intuition here. I think that in general while optimizing profit doesn't make sense, creating sustainable business models that fund their own growth provides many opportunities for impact that simply taking other peoples money doesn't.