Ask the French about linguistic purity and you get the feeling that an attack on the language is an attack on the culture. Likewise, corporations arising from the industrial revolution communicate internal structure and processes through the use of a well protected internal taxonomy. This serves as both a means of storing knowledge across generations of workers, and as a means of encrypting the knowledge from those who would pillage the enterprise.
For example, some people who leave Boeing (a 94 year old company) have a very difficult time re-integrating into society because many of their professional skills and tools are articulated in a language that nobody outside Boeing understands. Ex-employees of many large corporations often find themselves professionally invisible through an extended period of re-adjustment.
Melting Pot Economics