I can attest to this. I have met quite a few 'transient' coworkers who join the org for 6 months. They then use that money to go away to their actual pursuits

I can attest to this. I have met quite a few 'transient' coworkers who join the org for 6 months. They then use that money to go away to their actual pursuits for 6 months (sometimes 2 years). One of them went on a bicycle from London to Beijing. Another went on a 'back of the truck' tour of South America. They are competent enough at our job (software dev) to drop back in when they feel like, and orgs are happy to have them back, but it's not their passion, just a means of support.