Earning money is hard, saving money is damn hard, getting rich and being able to live comfortably is insane.
For me saving just for short term, you can't earn anything and your wealth will decrease over time. People have to take big risk if they want to be rich, if they only take some risk or little risk, it's not enough.
What does big risk mean? it's a risk where you can lost all of the money you invest e.g. start a business, invest in new thing etc.
So you are saying that, in order to be rich, a requisite is that you have to be mentally ill somehow (who in their right mind would take such risks?). Don't get me wrong: I agree with you that it makes some sense.
On the other hand, those who only save will see how their savings will lose purchasing power over time due to inflation, but it shouldn't be a reason for discouragement and waste, as it's the right step to start improving.