Besides, I see Nim more as a 'secret weapon' sort of language, or something that individual programmers use. Rust is more of a 'big idea' language, so it makes sense a corporation is pushing it.
I don't think that "big idea" languages [1] are necessarily the provenance of corporations/committees as opposed to individuals. If anything, the opposite tends to be true, as large languages such as C++ and C# have tended to grow to encompass more and more features over time as their feature sets expand to accommodate more and more stakeholders. Rust in particular started out as an individual project, with a set of design constraints—those of low-level memory-safe systems programming—that have remained unchanged throughout its lifetime.
[1] I'm not really a fan of that term anyway, as "big ideas" are just design constraints, things that all languages have. Rust just happens to have a unique (among industry languages, save maybe ATS) set of them.
Araq just announced that Nim has financial backing now: http://forum.nim-lang.org/t/870