In the present trend, the word is more appreciative of smart workers rather hard workers. All of us today are looking at options where we can make more money with minimal effort. However there is a huge difference between making quick money and making money more effectively, and our focus is entirely on the latter aspect. This is more suited for entrepreneurs who are looking at increasing their net profits for the same efforts that they spend.
The key to increased productivity is delegation. Find more people to do the work while you focus your energy on finding more work. You should never decide to do everything by yourself, which is a very bad leadership trait. Have people at junior levels to do that work while you use your time and energy to focus on bigger things. If you spend time doing the low-level jobs, then the higher levels of income are always going to be a far-fetched dream.