The problem as I'm hearing it is that, as always seems to happen, the government is promising a lot but failing to deliver. That's why the private foundations matter so much. They are much more likely to actually deliver on their pledges. If the public wants a better government response, then they need to let the government know that. Letter writing or something. There's an election in a year and if the government thinks that contributing to the Ebola fight will help with that, they'll make sure it happens.
This may be controversial to say on WC, but it is conceivable that a world where development policy is dominated by Bill Gates and Mark Zuckerberg may not entirely be a bad thing. People like that are all about getting things done, not dithering over the optics and political narratives. If you've read any of Bill's writing on development and disease in Africa, he gets it in a way that no Western government does and that's why his foundation is now so influential in things like fighting malaria and AIDS in Africa.