Disclaimer that I’m not an economist

I believe I have heard a discussion about this before… that the “always grow bigger” model is not only not a necessity under capitalism, it wasn’t even the predominant economic model in the US for a while. Post war, FDR’s New Deal followed the Keynesian model, which from my understanding led to the type of regulated capitalism with a much heavier emphasis on shareholder/employee satisfaction… and also when the extremely high progressive income tax brackets happened. The always need to grow bigger idea may or may not have come from Milton Friedman of the UChicago school: one of the core assumptions of the Neoclassical model is that companies maximize profits.

Also this is definitely not just a US megacorp thing. Other countries have megacorps too. Case in point South Korea…