Although it may sound a bit "preachy," I really feel that society has become somewhat pathological. Money seems to have become the only standard by which people are measured, and everyone is desperately chasing wealth, as if without money, you have no value. Meanwhile, the things that should be most cherished—character, sincerity, effort—are being pushed to the sidelines. People are so focused on counting their money that they forget what truly matters: how they live and the kind of person they become.
Don't forget, money is just a bonus that comes after the realization of self-worth.
Well it sort of feels like you're saying two different things here. First one being that those who focus too much on money end up not having or making any to really less about making money but how money is not "everything" and that your life and time are more valuable type thing etc.
I agree with you in many aspects but as of the title, in my opinion or at least from what I've seen, the wealthiest people tend to be focusing on it the on it the most. Though I do agree the theme of your thread no question.
Maybe what it means is that there are a lot of people who work only for money, and the money they make is used to buy what they want and have fun, without realizing that they will lose their jobs because one day they will be fired or no longer use their services, so they end up getting nothing after the income chain is cut off.
Unlike the rich who work for money and the money is used as a tool to earn other money by improving skills and others to make themselves much better at making more money.
The sentence is sarcastic for people who focus on working to earn money and spend it on fun without having long-term thinking. IMO