Satellites and undersea cable taps fall to the NRO and the USN, though I'm sure the NSA pays for some of it. That is beside the point though, the issue is exploit to hardening ratio - not exploit to everything-else ratio.
Is the money being spent wisely? Different question. But: nobody really knows how to effectively spend 100MM on hardening (a nice round number I picked at random).
You're redefining "hardening" to "hardening I agree with".