> While it's true that not everybody uses it in such healthy ways

The vast majority abuses it, and I suspect it plays a huge role in dwindling relationships. It is much easier to keep enjoying intimacy with your partner if you're not busy running like a hamster on the hedonistic treadmill of pornography.

Drugs can be therapeutic as well, and profound. The vast majority abuses them like crazy. So many examples. We are addictive as a species.