People can do all kinds of things that maybe aren't wise in hindsight because of jealousy.
So much of our lives are defined by habit or what the guy next to us is doing, never wondering and knowing who and what we support with our actions, from the detergent Mom always used, to my favorite dish I make... A lot of my life is unexamined habit.
My acting teacher used to say that people reveal themselves in their opposites.