Bitcoin opens opportunities for greater business scalability, because it is a more acceptable type of currency without unnecessary conversion processes (time efficiency).
But not transaction fees is the main reason. Bitcoin actually has a built-in fee (tx fee) which throughout history has been a source of skepticism in retail business use cases. Because of course more influential on the consumer side. The L2 (lightning network) solution still seems to have some complexity in its implementation for the average merchant. If bitcoin is going to be implemented in business, it should remain an alternative for now.