Sometimes harm is a matter of degree and intent

Doctors selling you fentanyl so you can be sedated for surgery is a good thing.

Drug Dealers selling you fentanyl so you can get high is a bad thing

Except drug dealers do not sell you fentanyl just so you can get high because they do not care. They do not care about YOUR OWN intention. People demand, they supply. And these people can have legitimate reasons.

You ever been approached by anyone selling drugs?

Of course they care about you getting high, that's their sales pitch