No matter how rich you are, you need to be careful with your money because there may be times of danger. Nowadays everyone earns money but very few people care about their earned money. Because people spend their earned money in various bad ways due to which it is seen that they spend more than what they earn.
There is a saying about, "it is not how much you earn but how much you keep". We need to live with that term because high paying jobs and skills won't last forever. This time is full of uncertainty that even in the most stable jobs, you'll never know if the company's budget is still intact and might do some laying offs.
So we should be careful with our money and even keep it as savings for future so that in case of danger we can use that money and get out of our danger.
I agree and don't just save at all. You need to learn to save money for you to allocate that into investments. So, when the time comes for you and you're no longer working, your money is the one that will work for you.