I think basically what was said that it makes no sense to live on poverty wages (even bouncing up and down to poverty pay scales as you switch jobs) in the hopes that if you do it for twenty years you will get a reasonably good paying job that you may or may not be able to hang on to.

The problem is that in your quest for financial independence you need to earn a good wage early in life to make it count. i.e. $125K per year for thirty years is far more valuable than earning $50K for ten years followed by $250K for the next twenty. The numbers may seem higher but all the lost investing opportunities and higher loan rates you pay while younger mean you likely retire poorer.