Now a real life example,
I own a small business with several employees,
I regularly hire people.
I will not pay a unskilled employee who does not understand my unique business a salary that makes it worth it for them long term.
However I do provide avenues for growth, once an employee has proven themselves valuable to the company i will provide regular raises and even pay to further their training.
This is something that is no means unique to my company. The actual rule among employers is that if you find a good worker then you keep them. We have a tight job market and good workers are valuable.