I suspect people who grow up in (basically) a socialist country like Germany, France, Scandinavia etc will have far less impetus to 'get rich'.
If you feel secure in being able to maintain an income where you can enjoy both the basic and leisurely aspects of life. That you won't be made bankrupt by illness, or by unfair illegal/legal proceedings. In these circumstances the drive to sit on top of 2.5M to feel relaxed about your financial situation will likely fade away.