It's not as unreasonable as you think - even in lower income / high tax burden countries like Austria an avg. net salary is enough to keep on travelling to all kinds of places.

I know people who work for the state government who keep appearing in India, Thailand, Brazil etc. when we're in meetings - usually they're billed as external consultants to avoid tax liability issues.

The true crux is that most people don't actually want the digital nomad lifestyle, humans naturally seek out some form of stability.