Jeff Bezos himself could be considered a mega-corporation. We're at the point where the personal wealth of oligarchs such as him has begun eclipsing the wealth

Jeff Bezos himself could be considered a mega-corporation. We're at the point where the personal wealth of oligarchs such as him has begun eclipsing the wealth of all but the very largest corporations. His own personal wealth would rank him somewhere around 60th on the Fortune 500.