|And I mean she comfortably rules the house.|
If you can't sell by convincing someone they're wrong, you certainly can't sell by getting angry at them. Imagine how quickly a shoe store would go out of business if the sales force spent their time screaming at the customers for picking ugly shoes!
The older I get, the more I become convinced that the Catholic Catechism is as good a rule book for life as any out there. Following the Catholic Catechism demands you embrace love, respect and forgiveness for others. Love, respect and forgiveness are far better sales tools than yelling, but yelling is almost always my first choice. I lean towards similarly un-Catholic, self-destructive behaviors in sloth, gluttony and lust. As far as I can tell, we all do. Yelling at my kids isn't an isolated example of self-destructive behavior, it's one of many and it appears to be universal across the human race.
If human psychology is the product of evolution, how did I manage to end up with all these counter-productive behaviors? Our Maximum Leader doesn't seem to have them. Her behaviors all appear to make perfect sense. If human cognition grew slowly over millions of years, why didn't efficient management of it grow as well?