[tptacek]

They are! Spend some time patrolling AfD. They're a huge problem; companies are constantly trying to get themselves into Wikipedia, because Wikipedia is heavily privileged in Google search results. But for-profit companies tend to present clearer cases for WP volunteers: they're either well-covered in reliable sources, in which case they're easy accepts, or they're not, in which case they're easy rejects.

The problem with OSS is that lots of projects probably do merit pages, but it's hard to see which ones.