Very true - but combining your comments and bringing it back to the OP: even if you generally enjoy your job (i.e., working for someone; not running your own business), working nights and weekends at that job is typically going to be a losing proposition with respect to future compensation and present opportunity costs for the vast majority of people. There are a lot of presuppositions in the OP tweets, but I believe this is the concept they are referencing.The amount of people who achieve financial independence period is in general is in single digits, that's not really the point. Assuredly independence is the long term goal for alot of people but even as a short term goal, improving your skills enough to gain employment doing something you actually like is going to be worth sacrificing off time.
Its not just about getting rich. Its about not hating the place that you are forced to spend a majority of your time at.