It has made me a better software team leader than I would have been, and definitely set me on a path to reach the next levels of management in a company, which is my particular interest and skill set.
I vote for starting some reading of business IT. There are lots of good articles to start your reading list and which will point you towards other readings.
I'd be thinking of your next step. Is it Software Architect, Team Leader or Project Manager?
Very different skillset. I would say you don't "have" to master all of them, but you should have a good understanding of what all 3 do and how they add value to a project.
And last, something that will come out of your MBA is the importance of sales and the ability to sell (Sales cycle, sales funnel etc.) Whether you are selling a product, selling your ability or selling the benefits of a project. Sales knowledge is something I rarely see in developers.
If there's anything else I can help with, hit me up privately. My details are on my HN profile.
Good luck!