keep it short and easy, when your salary reach certain figure, expectation and demand will also rise to different level, what make you push is the stress of losing it as you couldn't afford to lose those figure so you keep on alert about either maintain it or rising it.

I guess chasing salary is limited, chasing passive salary only will become limitless. The goal is to create income without working

Usually people that earns a lot but working for people, they only will notice how rich they are when the time they retired because they don't even have time to spend their money by working day and night.