Yes, but the lead surgeon at the hospital probably doesn't want one doctor using an Acme Scalpel 4000, another using an Ajax Scalpel, and yet a third using a FooBar X-Scalpel.
Maybe that part of the analogy doesn't hold up for a hospital, but it sure as hell does in a software engineering organization. If you have a bunch of people working together towards a common set of goals, it makes things a hell of a lot more complicated if everyone is just working in the language they like playing with the most, regardless of their overall technical knowledge. Organizations standardize on best practices, languages, frameworks and technologies because it simplifies things.
Maybe that part of the analogy doesn't hold up for a hospital, but it sure as hell does in a software engineering organization. If you have a bunch of people working together towards a common set of goals, it makes things a hell of a lot more complicated if everyone is just working in the language they like playing with the most, regardless of their overall technical knowledge. Organizations standardize on best practices, languages, frameworks and technologies because it simplifies things.