It sounds like he didn't make that much money for long. Better to have a real career where you're making good money every year, year after year.
But the main issue here is that someone without any special skills ended up making a shitload of money as a fluke by working at Binance for a short period of time. It's very unlikely they're going to be able to get another job even nearly that good, let alone more jobs 20% better, because they don't actually have real marketable skills and it was just a fluke.
They were talking about how wages at most jobs stagnate if you are a long-term employee. Which I find to be true as well.