It's unfortunate that a salary in that bracket can rule out some of the "right type of people" because they may have prohibitive living expenses. If you've got kids to look after or expensive medical bills suddenly that number ends up being a lot smaller, and if you're not living in the mountains your housing may eat the rest of it.

Thankfully for the Blender Foundation this is less likely to be an issue, since based on the data they appear to largely employ people in countries that have a healthy social safety net. If expenses like health care don't come directly out of the employee's pocket you can pay lower salaries no problem.

Personally as an American with health issues, I could never consider a job at that salary, no matter how much I wanted the job. Maybe if it came with a work visa so I could live in another country with functioning social and health services (but in some cases, non-citizens pay for that out of pocket).