How does the Davis-Moore Thesis justify social stratification in a functional society?

The Davis-Moore Thesis suggests that social stratification, or the way society is divided into different levels of wealth and power, is necessary for a functioning society. It argues that some jobs are more important than others and require special skills or education, and these jobs should be rewarded with higher pay and status to attract talented people. For example, a doctor spends many years in school and training, so their higher salary reflects the importance of their role in keeping people healthy. This system encourages individuals to work hard and strive for success, ultimately benefiting society by ensuring that the most qualified people fill critical roles. In this way, the thesis claims that inequality is not only natural but also essential for the progress and stability of society.