If something betters your life in a significant way psychologically, isn't that improving it in the long run?
Some albums that helped me maintain my sanity, connect and make friends with people I otherwise wouldn't have, opened doors for me, etc:
Starflyer 59 - Gold (got me into better music)
The Prayer Chain - Mercury (same)
Roadside Monument - 8 Hours Away From Being a Man (same)
Black Flag - Damaged (got me through last year)
Earth Crisis - Firestorm 7" (i'm straightedge at age 33 and glad for it. please don't fight me...

)
Coalesce - everything from Give Them Rope through 0:12 - A Revolution... (helped keep me from losing my mind in college)
Argyle Park - Misguided (got me through late adolescence)
Klank - Still Suffering (same)
Circle of Dust - all of their albums (same)
Neurosis - A Sun That Never Sets (helped calm me down when I started dealing with seizures)
Black Sabbath - s/t (do i really need to explain this? it's fuckin' SABBATH, c'mon!!!)
Nirvana - Nevermind (got me into music)
Nasum - Human 2.0
Brutal Truth - Extreme Conditions...
Napalm Death - Scum (and Harmony Corruption and FETO)
Anaal Nathrakh - The Codex Necro
Mental Destruction - Straw
Einsturzende Neubauten - Strategies Against Architecture I (these last two got me doing what I am now, musically, which has been a huge outlet and made me a lot happier)
And probably a dozen punk albums I'm forgetting, but there's no need to list them.