There's a vast difference between accurately advertising the effects of drugs and the risks involved in taking them, versus lying to you about the drugs and creating an environment that furthers addition.
It all boils down to consent.
I might want to take some drugs that have some harmful side effects. But i knew about them and i willingly made the choice because I valued the high more.
Contrast this with, I knew about the harmful side effects and told you they didnt exist and you should take more. And then i change the drug so its even MORE harmful because it also makes you BUY more. That's what these social media sites do.
They use engineered sociology and psychology to create addictive products, and then refine them to maximize profit at the cost of anything they can pull a lever on.
What bothers me the most is not the vampires at the top sucking out every dollar they can extract out of vulnerable people, but the fact that so many engineers are supporting this. So much for engineering ethics. Why even bother teaching it anymore?