A lot of the points can be boiled down to "work very hard". But what if you simply are the type of person who doesn't like working? Another point is do what makes you happy. For some lucky folks, work makes them happy, but there's a lot of us who don't like it. And no, it's not just a specific job. A lot of us are just kinda lazy to be perfectly honest. The things I enjoy most are running, eating fine meals, quality times having beers with friends, traveling, reading and playing video games. I do work so I can support myself so that I can do those other things, but I certainly wouldn't work if I didn't have to (and I've worked and saved long enough that I'm fairly wealthy and won't have to for very much longer).
I think one of the reasons is that I don't care about social status or material possessions or competing at who can make the best chat app or anything like that, and work just feels like a grind to me. Sure, some of it is better than other parts, but in the end, I'd always rather be doing something else. I also am not usually impressed with other peoples' career achievements, and getting a promotion or a better job doesn't give me any sort of feeling of accomplishment or 'high', just, well I guess I'm a few years closer to being wealthy enough to get out of this bullshit.
A lot of people will look down on me for this, but I'm ok with that as I'm not trying to win a popularity contest. I just don't think "work hard" is necessarily the best advice to all people. I do think work is important as it's a means of contributing to society, and in the end, I'm glad I did my part, but after I have enough to "get out", I'll have satisfied my conscience to spend the rest of my days having good times and doing things that really make me happy.