My initial questions would be: What is it that you're trying to do? Why are you both a doctor of Education and a doctor of Data Science? What is your end goal?
First of all, these fields aren't unrelated. It's certain enough that pedagogy and technology are not the same subject matter, but Data Science as a skill is so pliable that it really fits anywhere you put it and is supplemental to basically any other field of study. Research in general requires data. You could put both to use, for example, as an academic performing big data research on whatever level of education your studies focused on. Maybe you really care about finding trends in, say, early childhood developmental strategy success by querying methods from a large pool of pre-K and K-12 environments and evaluating their degree of success. You might care to do this to find what works and what doesn't work for the sake of publishing literature on effective teaching strategies.
I'd expect that someone with a degree in education and data science would be looking for a position that marries the two disciplines. Secondarily, attempting to fill a position where one is used and the other supplements. Most commonly, you'll find yourself applying where one fits and the other doesn't, but this isn't so out there. There are always soft skills that can be transferred from one discipline to the other. Not to mention, if you have both degrees, that speaks volumes about your dedication in general.
Once those initial questions are evaluated, the follow-up would be: Is the position you've applied for a good fit for you? If you have that wealth of knowledge and mean to use it, are you under-applying yourself by working here?
I think that, less than your resume making you look like a fool, at that level, not fully applying all your academic skills would be the thing that would make you look like a fool. If you cared enough to go to the pinnacles of study for the field, why would you not use it, or at the very least, place yourself somewhere where you can draw on the less important of the two to your work to enhance your work?
As someone looking at your resume (and assuming I have the time to review it in detail) those would be the things I'd focus on. If the questions I have can answer themselves by nature of what you've applied for and your experience in a positive way, then you wouldn't look like a fool at all.