JcPenny and Hertz are the fake "big companies". Jeff Bezos will certainly not be the first trilionaire, just the first on paper.
Businesses that win out in any situation (wars, economic depressions, etc.) are the businesses that are actually essential and will remain untouched until there is a new system. That would be centralized banking and all of the corporations that central bankers own or have influence over=the mainstream media and silicon valley.