I think the original poster was meaning for those who quit everything and just travel…
I agree, that ultimately it does increase one’s “self-worth” (an ambiguous term, to be sure) because it makes one realize how narrowly we’re taught to judge another’s “worth”. It’s a philosophically interesting question that really just brings in a new category of existentialism that, once you find yourself on the other side of, leads you to be more confident in your place in this world.
But getting through that first stage of existentialism can be pretty rough! And, if you’re like my husband who worked the same job forever and is now retired, it can also create a sense of identity loss. He was a philosophy professor most of his life. Now that he’s doing vanlife, who is he and how is he defined by the world? (Side note, this is a popular topic in sports psychology for when athletes get injured or have to give up the sport!) Indeed, he is the one who struggles most with this question and with feeling like a bum! 
Anyway, I thought it was a great question!