Yes. Of course, everybody knows that.
In reality, however, someone somewhere not always achieve what they dreamt of becoming. They might not have the ability as others to forcefully implant a new ideology or to cheat themselves mentally and emotionally for that, but they do have the courage to push aside that disappointment to feed his family.
I'm not sure about you, but in a lower-mid class family, dads all around worked for their jobs and most of our previous generation, as in our parents, does not like their job, but they have a mentality that it's their family they're feeding in lieu of that. See it from all sides. That guy might have a point too.