When it comes to sales, you can't settle for mastering product knowledge.That's too myopic. You have to broaden your approach to include a comprehensive knowledge and expertise, not just of a particular product, but of the whole industry or field of which your product is one part. As Andy Frisella says, you have to be "the guy." You yourself have to be a holistic resource for your customer. Those who do that will reap benefits for your brand and bottom line.
What's wrong with the world today? Like you, I get on the internet & social media & think, "WTF?" Like...it literally seems like society has become an insane asylum & the lunatics are running the place. Everybody is angry & resentful at everybody else. Well I heard a great story that provides a two word answer for what's wrong with the world. If we take that answer seriously, we'll all go a long way in fixing society...and our own lives.