Get Off My Lawn said:
Corporatization is part of the consequence of universal suffrage. If politicians served voters who all owned and ran private enterprises, taxes and policies would necessarily favor small businesses. But when a voting block is majority consumption focused; scale reigns and big pocket lobbyists can easily "incentivize" politicians to tip the scales increasingly in their favor.
Corporatization would happen regardless. Larger companies are stronger and more efficient than smaller ones, and aggregation is to be expected when efficiency is rewarded like in free market capitalism.
Think of it like the evolution of nations. Prehistoric humans roamed in small troops or bands, but safety and efficiency in numbers and cooperation led to consolidation and further expansion until you moved from small bands with personal territory to larger societies with established borders. After a few millennia of further consolidation you have massive nations that run things and continue the slow march of aggregation. Look at Europe. Once a highly fragmented and conflict prone region, it now has the EU, open borders between nations, and a common currency. It is slowly consolidating in the same way humanity has for millennia.
Business is the same way. It is all about growth and continuity, so the same mechanisms will come into play. There is strength and efficiency in size and numbers. There is also risk mitigation in diversification. Larger and larger companies stretching themselves across industries are pretty much inevitable based the forces and mechanics of markets, not politics.