Eventually it will be split from actual Data Science work which is essentially either Machine Learning or Statistics. Imagine making a master sculptor mine his own Marble, it would be absolutely absurd similarly it would be silly to make a PhD Machine Learning expert work on data cleaning. A massive waste of talent on trivial work.

Edit: trivial isn't the right word, it's obviously an important step in the process but quite different from what you are really paying a "Data Scientist/ML Engineer/etc" to do.