These days, the wages of different positions variate between multiple companies and levels of positions. Some people argue that there are junior employees who deserved better salaries regarding of the long list and complex tasks they performed in daily, weekly or even annual bases. While other people, believe that the senior or employees whom hires in leadership positions they take bigger and risky tasks and as a result they received higher salary.
In one hand, the coworkers are the key reason to operate the main functions in every organization since they performing the decisions which has been taken by top management and applied their skills and sometimes spent overtime to accomplish such duties. For example, If the chief of a corporate direct his reports to start a project, the teams will start the project from beginning to the final touches and the chief will receive the updates and review the final output.
In the other hand, the senior staff usually guide their teams based on their huge experience in the market. I believe the increase of their salary is mainly a reward for the years they spent. For example, the professors did not refine his knowledge in one night, he start small and take salary on the knowledge he has regardless of hard work he done in his workplace.
To conclude, the variance of workers’ salaries has a lot of discussions between workers, but it usually refer to this differences as the years of working and knowledge the seniors have which I totally agree on.