Let's be honest - you work at a big company because it's comfortable. You don't have to work 80 hours per week, and you get paid, have nice benefits, and the family is all happy.
If you're in business, and you don't understand how that word of mouth works, you won't be able to take full advantage of it, how to get full adoption by getting that network to talk about you.
Photography let me show other people how I saw the world. Math required me to do work that made my head hurt.
Over at Barb Bowman, she's arguing that we should turn off Facebook's tracking of ads. I totally disagree; those trackers make newsfeed filtering work better and potentially could help bring me better ads, which improves my life.
People thought I was an idiot, but I saw social networks were going to be more important, and it turned out to be true.