There's no doubt that incredible amounts of time are "wasted" by all of our quick dopamine hit apps and sites. These are the new opiate of the masses. It seems to be something we are all aware of, and we talk of unplugging. Some do, here and there. It's a constant struggle. The new cigarette / snack food. Just as hard to quit - but we should all at least try.
My government puts a lot of effort (money) into making people quit smoking because smokers are extremely expensive on public healthcare. Our goals are 4% by 2025, but even in countries with less of a business case for health, there are still huge campaigns against smoking.
Facebook, Reddit, candy crush, instagram and so on aren't really seen as health risks. They mostly occupy the masses, and no one wants to put money into stopping that. At least not yet.