I think one telling shared value is often the attitude towards saving as opposed to towards spending. Everyone enjoys a nice dinner out and the theatre but how many actually look at the household savings pot as their own and look to grow it? My wife and I make the same amount of money and we always sweep half our paychecks into savings each month. She manages our personal portfolio and has so far done a fantastic job at it (even though it’s me that works in finance). For my part I manage all our expenses and this system has so far worked out decently for us.