Yes. No need to retract your PhD, your whole domain is a sham.
Yes. That's why we produce the same structural data as the X-ray crystallography guys do with a completely different method.
Oh, I forgot to mention, the above was only the digital processing. Before the raw data - i.e. the signal of the receiver coils - get digitized, they run through a preamp, a couple of analog filters, the main amp and the a/d-converter, each component, even the cables in between, adding artifacts and distortions to the signal.
In summary, every non-trivial measurement yields heavily processed data. You just need to be aware how exactly you processed them. Science, it works, bitches.
You knew the job was dangerous when you took it, Fred. -- Superchicken