Finance is important, but Facebook is such an essential networking tool, professionally and personally, that I completely disagree with you. Facebook solves a multitude of "real problems" -- just because some people "waste time" on it does not mean it isn't a serious tool. Without Facebook, for instance, I simply would not know nearly as much about the lives of my old friends and professional acquaintances -- this alone makes it very practical.
Not only this, but Facebook helps me organize the many people I meet each day, lets me easily keep in touch with people I care about, lets me know who is in each city I visit so I can arrange meetups, facilitates much of my social life (invites/mixers/who's going to what), provides introductions, etc.
Mint did not even exist two years ago, and people dealt with their finances then just fine. The difference between using Mint and not (in finance) is the same as the difference in using Facebook or not (in networking), in my opinion.
Not only this, but Facebook helps me organize the many people I meet each day, lets me easily keep in touch with people I care about, lets me know who is in each city I visit so I can arrange meetups, facilitates much of my social life (invites/mixers/who's going to what), provides introductions, etc.
Mint did not even exist two years ago, and people dealt with their finances then just fine. The difference between using Mint and not (in finance) is the same as the difference in using Facebook or not (in networking), in my opinion.