By the very nature of the business, if you are not improving something, some human-describable human activity, by using esoteric magic, you're probably not that good. If you're making it indescribable in the process of making improvement, perhaps you've been in the business a long enough time to know, the only difference is whether the customer can be bothered to learn the language, or not. Anyone can 'program computers'; computers are a universal language.