Google, Facebook, et al, collect data in exchange for a service. You can use incognito mode for Google, or just not use Facebook at all.
The NSA collects your data whether you want it to or not, and you have no say other than to just not create any data.
In the same way that Google has access to your data if it's in their datacenters and you use their services, the NSA assumes access to your data if it's within their abilities to get it, and they find you slightly suspicious.
It's really not the same thing and claiming it is the same thing is disingenuous.