I think it absolutely was. Even 50+ years ago there was far more competition in any number of industries and investors looking at a particular widget maker could compare numerous companies and analyze the operations and strategy of each before picking which one(s) to invest in. Today we assume EMH when competition has become increasingly rare... so everyone from consumers to investors have fewer options yet somehow efficiency is supposed to exist.
Today most just pile into the megacaps and generally assume 'these guys are the biggest... they must be the best.' Sure, there's a small window of competition in the VC world where money piles into non-public companies for a few years before a winner is selected (often having nothing to do with having the best product/service or even being the most efficient or profitable... it's all about who scaled to the finish line the fastest) and either becomes the 800lb gorilla or gets gobbled up by one.
Today most just pile into the megacaps and generally assume 'these guys are the biggest... they must be the best.' Sure, there's a small window of competition in the VC world where money piles into non-public companies for a few years before a winner is selected (often having nothing to do with having the best product/service or even being the most efficient or profitable... it's all about who scaled to the finish line the fastest) and either becomes the 800lb gorilla or gets gobbled up by one.