The key difference being operational ownership and business continuity. If all mathematicians (and I say this as a mathematician and math lover) just up and had

The key difference being operational ownership and business continuity. If all mathematicians (and I say this as a mathematician and math lover) just up and had a heart attack, then the world would probably not notice (as a whole). If a critical service is experiencing growth and built on cryptic stuff, then the world may notice if no one can maintain it and it falls over.