There's lots of evidence that the concentration of wealth is bad for the economy, but I suspect from your posting history that you'd ignore it all in defense of the ultra-wealthy (which you're not one of and will never be, of course).

https://www.google.com/#q=concentration+of+wealth+effect+on+...

It's your right to believe whatever you want, but that's what this world-view is, belief, and nothing based on evidence or reality.