Crystals - placebo effect can be a thing, and if they provide a sense of relief that's a good thing. As long as they still take their actual medicne and don't think putting a herring in a sock will cure cancer.
Cables - While there's obviously a cut-off point. As an IT guy I have fixed a not-insignificant number of issues with sound/display/network quality/dropouts by replacing crap/damaged cables with slightly more expensive ones. Just don't expect them to turn. a 360p stream into 4k
99% of social media/content stuff is basically another form of addiction.
But it's such a difficult habit to break. The "good stuff" is literally a click away, and is socially acceptable to indulge in, or HUGELY encouraged in almost all walks* of life: by companies who use it to advertise, necessary in order to do basic things these days, or your friends/family asking why you didn't react to their latest pics on Facebook. Some other examples of this: get a job by having a good LinkedIn profile, get support by complaining publicly on twitter, getting support through Discord.
Of course this psychopath doesn't think he's at fault.
This is the same "man" that spent $200,000+ on empathy consultants yet still can't figure out why the poor and homeless can't just buy a house.