- It helps you relax and makes you feel good
- Promotes socialization with the other smokers you know
- Helps you look sophisticated / cool
- I don't have the citation handy, but I recall seeing old advertising campaigns that touted all kinds of benefits
Now we know that none of those perceived benefits matter since the more likely outcomes are severe health issues and death. Doesn't matter if it fosters community if that community will die because of it.
The other part of the comparison that gets a bit messy is that the existence of social media isn't necessarily the primary issue - it's the application of engagement algorithms that prioritize specific types of content. That is what I'd argue has no inherent value (aside from monetary), or dubious value at best.
I'm not saying this is the choice that must be made, but it is conceivable that the harm caused by the current state of the product is enough to mitigate the positive factors.