1) I have been working as researcher for the past 12 years or so (cancer and neurobiology). Pretty much everything in the field of medical science is founded mainly by public money: this goes for salary and research money. Private contribution is quite minimal and proximal to zero in basic research.
2) Wut? Do you have any idea on the level of technological transfer that space research brings to your everyday life? This goes from materials that keep your home warm to GPS, really.
3) dude, arpanet is a project of DARPA. WWW is a project of CERN. I got money from DARPA and I study fruitflies for god sake.
You have no idea what you're talking about.