Alternately, document your 'magic architecture' in public so that people don't have to offend you or other employees of the firm by making incorrect assumptions based on the little you do show in public.

Also helps others pick up if you do go out of business or end up acquired, and before you do it even leads to a more level playing field.

However I guess a level playing field wouldn't have given you a NYSE listing... so I guess you're just being selfish?