Earlier quoted context omitted.
That's true by definition? But you're probably not displacing jobs for the locals, which is the typical justification for why it's hard for foreigners to get local work permits.
The rationale I've seen is that you're contributing less (risk-adjusted) to the country's economy than either a tourist (who would be spending more) or someone on a work visa (who would have a stable job and be paying local taxes) would.
The belief that DNs necessarily pay less than tourists is largely based on stereotypes. In order to be able to focus on work, DNs tend to look for full apartment rentals, often in relatively upscale places where fast and reliable internet is guaranteed. In many countries that means they are already paying less than ordinary backpackers who are staying in hostel accommodation.