I personally disagree with it and I don't feel it. Sense of purpose from contributing something useful to society? Yes. Sense of purpose for doing random pointless shit I don't like for a master I don't like, so the master gives me currency I need to not starve? Not really, more like modern slavery.
I realize that some people find purpose in what I just described as modern slavery; I know such people personally. I respect that, even if it smells like Stockholm syndrome to me. Still, the future is either UBI or endless invention of utterly nonsense jobs (dig a hole, fill it up, dig a hole, fill it up...) just to keep people employed.
The coal story illustrates the point perfectly. I'm grateful for centuries of miners and engineers (and their supporting families), who together ushered us to an era of ever more advanced technology. But today, their job is done. In XXI century, using coal for energy is wrong for many reasons, and those jobs need to disappear - keeping coal would be irresponsible for a society.
That's why we need the "dole". Because some jobs no longer make sense, and if people (and communities) need to retrain, "find new purpose", then it's dole or die.