> Big companies are just successful small companies.

That would imply either that big companies all started as small companies which became successful and grew large, which is false (some big companies start big). Or that big companies operate the same way as small companies, just at a larger scale, which is unequivocally false.

Successful at what? "Mom and Pop" shops are totally different and provide for their small communities in ways no big company ever could. Individuals like Alexandra Elbakyan, Bram Moolenaar, and Guido van Rossum have done great things on their own without the help of corporations.