[jraph]

Because it comes with the freedom to used for any purpose in its core goals / social contract [1], including commercial purposes:

> No Discrimination Against Fields of Endeavor > > The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.

See also [2]

[1] No Discrimination Against Fields of Endeavor

[2] https://www.gnu.org/philosophy/selling.html

[Narishma]

Are there any (main) distributions that are fine with this restriction?

[jraph]

The GNU project has a page listing common distribution and their handling of non-free software if you are interested in the topic [1].

[1] https://www.gnu.org/distros/common-distros.html