Different programming languages come with different schools of thought about programming and different communities of practice around programming. If you take

Different programming languages come with different schools of thought about programming and different communities of practice around programming. If you take a group of people who are squarely in the enterprise Java school of thought and have them write Rust, the language won't make much of a difference. They will eventually be influenced by the broader Rust community and the Rust philosophy towards programming, but, unless they're already interested in changed approaches, this will be a small, gradual difference. So you'll end up with Enterprise Java™ code, just in Rust. But if you hire from the Rust community, you will get people who have a fundamentally different set of practices and expectations around programming. They will not only have a stronger grasp of Rust and Rust idioms but will also have explicit knowledge based on Rust (eg Rust-flavored design patterns and programming techniques) and, crucially, tacit knowledge based on Rust (Rust-flavored ways of programming that don't break down into easy-to-explain rules). And, roughly speaking, the same is going to be true for whatever other language you substitute for "Rust". (I say roughly because there doesn't have to be a 1:1 relationship between programming languages, schools of thought and communities of practice. A single language can have totally different communities—just compare web Python vs data scientist Python—and some communities/schools can span multiple languages. But, as an over-simplified model, seeing a language as a community is not the worst starting point.)