That turns into working hard so you or your descendants can eventually own the world. Jeff Bezos did it. Elon Musk did it. Bill Gates did it. If any of today's billionaires stopped when they had enough money, we wouldn't be talking about them.

Except all of the above settled for 1x, quitting their jobs (where they had one) to pursue their personal dreams. It so happens that their dreams also turned into something valuable, but that's secondary. They would have never been able to seek out their dream or turn that dream into something valuable had they accepted 2x.