I think there is some truth to this. Many of my colleagues who come from well-off families seem to struggle with finding meaning in their life, and I suspect it might be because work quite literally doesn't have a purpose for them - they could quit working today and not have to worry for many years, possibly forever.
To me, I work so I can earn money and provide for my family, which I don't take for granted. That alone makes any work-related annoyance not such a big deal.
Of course I also like getting intrinsic pleasure from work, social relationships, rewarding hobbies, etc., but I find meaning in life prior any of those, which is a good defense mechanism for when one or more of those things aren't going so well.
To me, I work so I can earn money and provide for my family, which I don't take for granted. That alone makes any work-related annoyance not such a big deal.
Of course I also like getting intrinsic pleasure from work, social relationships, rewarding hobbies, etc., but I find meaning in life prior any of those, which is a good defense mechanism for when one or more of those things aren't going so well.