That sounds obvious. But while a company is growing fast, the difference is very easy to miss. Revenue growth can cover a lot of inefficiency for a while. One more employee, a slightly larger discount to a customer, a new product that brings turnover but not margin, more expensive logistics, a process that used to be good enough and no longer is.
Individually, none of those may be a problem. Added together, they become one. The company is bigger, but not necessarily more profitable.