For business it is better to have "properly" designed database with the clean structure looking at which it is easy to understand how everything is organized and works. It can be used / interrogated by other software (writes are of course prohibited).
Sure it will not do Google scale and I do not loose my sleep over it. For most "normal" businesses what I have is way more than enough.
Besides, as I've already said I treat each product individually so my architecture reflects the actual needs and changes accordingly.
Not my experience at all. The problem with a “clean” “properly” designed database schema is handling migration and schema changes. Also, in an Enterprise environment, you end up having external systems relying on your schema, making it nearly impossible to upgrade the schema without breaking systems you don’t even know about until somebody shouts at you.
Sure it will not do Google scale and I do not loose my sleep over it. For most "normal" businesses what I have is way more than enough.
Besides, as I've already said I treat each product individually so my architecture reflects the actual needs and changes accordingly.