> knowledge workers who don't work hard earn more than physical workers who do work hard.
earnings are measured with productivity, and knowledge work has more scaling to their productivity output. You can dig holes really hard, but a hole dug is a hole dug. A line of code written is not just a line of code, as power of compounding output stacks on top of each other.
Classist wage disparity is a real problem in America today. Often knowledge workers who don't work hard earn more than physical workers who do work hard.