you are not inconvenienced when the NSA buys data in the same way that you're inconvenienced when you have to feed/house a soldier.
While it's extremely unlike the authors of the 4th amendment had the internet & etc in mind this concept of selling things to the government surely was known to them and so the current implementation would be OK from their perspective.
A lot of the first 10 amendments are about protecting your physical property from the Government. 2nd - Guns, 3rd - House, 4th - Property, 8th - Money. The digital bits that Google and etc created (ex. metadata) are clearly neither in your procession nor your property. There is no amendment that protects letters you wrote but gave to somebody else nor recordings made by somebody else of your interaction with them.