I cannot speak to the differences between the two fields, in detail, but you said the key word in your question... PASSIONATE!
I have a degree in my passion, Fine Arts, I have a degree in my passion Graphic Design, I also work in the field of visual communications which is my passion as well... Art, Design and VC are my passions. So is it possible to work as both in your profession? Absolutely!
Your passion is going to make you a valuable asset to any company, having a strong education in multiple but connected fields makes you a prime candidate. Think about it like this:
A translator who speaks one language is important to the United Nations, but a translator who speaks 4 languages is invaluable to the United Nations.
Knowledge is power and the more you have the better and more important you become to the people you work for. They learn to lean on you, rely on your skillset, and in the case of your chosen profession you end up being the translator in many cases because you can bridge the two, and this is just a superficial example.
So the answer is yes. Then wave that knowledge around like a big neon sign and make sure every employer you go to for that job knows just how valuable you are!