I used to think that everyone need to spend more time with mentally challenging and stimulating things instead of infinite distractions.
Reading books, playing chess, composing music, doing math, solving problems instead of watching tv, arguing pointlessly, tweeting every minute, and the likes.
Then i realized how insensitive this thought was. For some people, playing chess provide a distraction, while for some other, tweeting nonsense is their means of survival.
Then perhaps nothing is more meaningful than another. Just a matter of what things people do to make their life a bit more enjoyable, whether it is making the world a better place, or just complaining about nearly everything.