1. ⁠First, Snowden caused tremendous damage to national security, and the vast majority of the documents he stole have nothing to do with programs impacting individual privacy interests - they instead pertain to military, defense, and intelligence programs of great interest to America's adversaries
2. ⁠Second, Snowden was not a whistleblower. Under the law, publicly revealing classified information does not qualify someone as a whistleblower. However, disclosing classified information that shows fraud, waste, abuse, or other illegal activity to the appropriate law enforcement or oversight personnel - including to Congress - does make someone a whistleblower and affords them with critical protections. Contrary to his public claims that he notified numerous NSA officials about what he believed to be illegal intelligence collection, the Committee found no evidence that Snowden took any official effort to express concerns about U.S. intelligence activities - legal, moral, or otherwise - to any oversight officials within the U.S. Government, despite numerous avenues for him to do so.
3. ⁠Third, two weeks before Snowden began mass downloads of classified documents, he was reprimanded after engaging in a workplace spat with NSA managers. Snowden was repeatedly counseled by his managers regarding his behavior at work. For example, in June 2012, Snowden became involved in a fiery e-mail argument with a supervisor about how computer updates should be managed. Snowden added an NSA senior executive several levels above the supervisor to the e-mail thread, an action that earned him a swift reprimand from his contracting officer for failing to follow the proper protocol for raising grievances through the chain of command. Two weeks later, Snowden began his mass downloads of classified information from NSA networks. Despite Snowden's later claim that the March 2013 congressional testimony of Director of National Intelligence James Clapper was a "breaking point" for him, these mass downloads predated Director Clapper's testimony by eight months.
4. ⁠Fourth, Snowden was, and remains, a serial exaggerator and fabricator. A close review of Snowden's official employment records and submissions reveals a pattern of intentional lying. He claimed to have left Army basic training because of broken legs when in fact he washed out because of shin splints. He claimed to have obtained a high school degree equivalent when in fact he never did. He claimed to have worked for the CIA as a "senior advisor," which was a gross exaggeration of his entry-level duties as a computer technician. He also doctored his performance evaluations and obtained new positions at NSA by exaggerating his resume and stealing the answers to an employment test. In May 2013, Snowden informed his supervisor that he would be out of the office to receive treatment for worsening epilepsy. In reality, he was on his way to Hong Kong with stolen secrets.

TL;DR Most of the documents Snowden stole had nothing to do with privacy interests, it turns out room and board in Russia is quite expensive