The difference is asbestos clearly and directly caused harm, the social media addiction stuff stand on pretty dubious science to say the least.

The problem wasn't as simple as it caused harm, it was the companies knew it caused harm and did nothing.

Just like how Meta, it's staff and leadership all knew they were making decisions that harmed people, and did nothing to stop it while profiting immensely.

To be fair, aesbestos makers too knew and didn't stop selling it.

So do sodium hydroxide makers, they know it's toxic and they still don't stop selling it.

It's not the same. Aesbestos makers knew, their customers didn't, and they actively fought against the customers knowing it. Whereas NaOH makers know and go as far as writing it on the packaging.

Punishable by fine just means its legal for a price. Its disgusting

Well, they are being asked to make changes as well, which presumably prevents the damage.

It can be argued the changes don't go far enough so maybe "pay fine, reduce harm, but harm still permitted..."