Every business is a unique creation. It has its own unique realities, characteristics, strengths, peculiarities and rules. It is not always possible to apply the rules of one business to another.
We can see many examples of businesses which look outwardly identical in many aspects, but their levels of success are very different. Even copycats of a successful business also get different results. Sometimes, a photocopy is lighter than the original document and at other times, it is brighter. There is no molding machine for producing successful businesses where all the products come out the same. Every creation is handmade. There are bound to be some differences.