if one believes that they see the world much more accurately than (almost) anyone else, and yet they do not use this supposedly superior knowledge to make their own life better, they are actually not smart
That assumes that every piece of knowledge is actionable, and that acting upon it is the best use of your time.
That assumes that every piece of knowledge is actionable, and that acting upon it is the best use of your time.
If the piece of knowledge is not actionable, probably bemoaning it is not a good use time either.