An economy needs demand, it's not just dead capital.
It can easily reorient itself (and arguably, already has) to serving the demand of a small minority of asset owners rather than the majority of people. E.g. people building luxury yachts and working to maintain them, working in luxury restaurants, maintaining luxury gardens etc. instead of working in roles that improve the lives of the majority.
Because most people are working on things that improve the lives of the asset-owning minority and not of the majority, the standard of living of the majority is not improved, they have to work more for less.
How many high-paying jobs today actually do anything that benefits the 'common man'?
Why do you think those assets are valuable?
>How many high-paying jobs today actually do anything that benefits the 'common man'?
I agree there's a lot of inequality and ridiculous pointless jobs, but the average person (in the developed world) still has access to a cornucopia of goods and services which they purchase.
So unless there is a change towards UBI in your take (which is still not an all around solution. Many people only fit properly in a society because they are occupied 8 hours a day with something), that will probably result in the biggest revolution ever seen.
And there is not enough high walls to save the rich from that.