Agreed. Most activities in big companies are not even remotely related to the core technology or idea that brought the company into existence. As company grows,

Agreed. Most activities in big companies are not even remotely related to the core technology or idea that brought the company into existence. As company grows, training departments grow to train new clients, technical writing teams grow to write documentation in different languages, technical teams grow to support the many different operating systems and markets, HR department grow to support the many people now working at the company and soon the effort required to coordinate all these people is more than the effort put into the original product. Some founders adapt to the changing needs of the company some don't like all the admin.