I had come to the same conclusion as this guy sometime back. I also continue to hear some friends worry about money like this fellow had. Some know when to draw the line because they were never interested in living it up. For them it is easy to know when they have entered their financial safety zone. Those who fail are the ones on an ego boosting trip. That sort of journey never ends and society must eventually stop them from taking such trips because the cost to everyone else is horrendous. Today the top 85 richest people have as much wealth as the bottom 3.5 billions on this planet. That's more than half the world's population.
Link to video.