I'm wondering how long we'll need to do the savings? Who has already reached any significant level, are you still saving, or you can afford to live without any financial restrictions?
I'd still saving even if I had a chance to be in that phase. I bet even richest people out there have savings in case something bad and fatal happen in their life, savings are a must if you at least want to be safe in your financial decision. Sure, you may not need to worry about your money because of your job or the way you obtain the income but let's be real here we don't know what would happened in the future and so many cases have been published in news where rich person could also get dragged down to be a poor because of some reasons, just be aware.
Everyone should have savings so it doesn't matter whether it's for the rich or the poor, if the rich don't have savings because they are very wasteful to shop and spend money without setting limits on using money for daily needs. Like you said that our economy will change in the future so we need savings for unexpected financial preparations, so it's very important to save even though you are rich people have passive income from your work but our future never knows because many of the rich people are now have fallen into poverty because they have no savings to continue their business.