An example to argue my point: a small hamburger restaurant vs. McDonalds. The small mom-n-pop hamburger place does not need HR systems, an ERP for supply chain & logistics, a large marketing and promotions department, a fancy business intelligence platform, etc. McDonalds needs all of that because all of their franchises depend (aka pay) them to supply them, do marketing, etc. The small hamburger place has no interest in government contracts, like a McD's at every army base, and is very far away from needing anything like a large corporation until they are closer to that size.
The small burger place doesn't have processes in place to scale, they have Bob the cook who likes to season the burgers liberally and Sally the other cook who holds back a little on the salt but typically adds extra pickles. McD's probably has a set of procedures on how to cook everything uniformly, season the same, count the number of pickles, the amount of ketchup, etc. all the same.
Smaller businesses operate effectively more so because of the people at them. Large corporations operate effectively through top down processes, procedures and bureaucracy with replaceable people.