This is the precise reason, Rust is a decade or two away from being a useful replacement for C/C++ like other contending systems programming language like go and Swift which are at present more popular than Rust for writing systems program for networking, servers and controlling Apple hardware directly.
Mozilla, Microsoft, Amazon, Apple and other's investments in Rust, clearly demonstrate the value of writing new systems software in Rust, alongside and inside existing C/C++ code bases. Rust is clearly monetarily useful, despite not being a systems programing panacea.
Rust evangelist promote Rust as replacement for C and frown upon anyone who has a contrary view including direct attack on those opinion.
Rust has a value like other programming languages and not a panacea As you said, it’s just not a C replacement for another decade or two or may be never.