Rust isn't the only community that's at risk of getting coopted by corporate sponsors. The PostgreSQL core team now has an explicit policy that no single company employs more than half its members -- but to follow it, last year, they had to expand membership (after companies employing 50% of the prior core team merged, and they didn't want to boot anyone).
https://postgresql.fund/blog/is-it-time-to-modernize-postgre...