When I was applying for the PhD study I was thinking about it as opportunity to have chance to use all techniques, programming languages, methods, processes and technologies in practical way and delivery something reasonable which supports my professional growth and development. And it could stands as proof that I am really keen to learn and improve in this field and I have passion to do Data Science.
I was thinking about it again when I have read this article The Modern Data Nerd Isn’t as Nerdy as You Think on Wired about Data Nerds who are currently in charge of Data Science departments or in similar role and apply their experiences and knowledge and usually they do not have PhD. More over they do not have master degree, just bachelor degree. Or in case they have any kind of degree it is not from field close to Data Science.