Yes. We can also remember that Richard Stallman called Snowden a 'Hero' [0] for revealing the PRISIM programme was his strongest evidence around the NSA mass-surveillance and backdoors in general using internet services and companies. Without this, it would still be another 'conspiracy theory' which would have lacked any concrete evidence to support Stallman's claims.

[0] https://blogs.wsj.com/cio/2014/02/18/richard-stallman-calls-...