Why won't he be loyal to you forever?
In this world, there will be a lot of customers who are willing to do business with you; but customers who are willing to do business with you for a long time and will also refer you to old customers, that is not necessarily the case.
Customers, he will not always be loyal to your company; employees, will not always be loyal to your company, employees and you are for the sake of fame and fortune; then customers, why is he willing to do business with you?
In fact, it's very simple. Customers do business with you because they can feel the good quality and low price. To put it plainly, these people are by your side to take advantage of you.
As a result, if your success can benefit others, then others will be willing to squeeze into your circle and continue to make money for you.