In particular, the fact that the wrapper is MIT-licensed is largely irrelevant: if you redistribute a derived work that includes GPL components, then you must comply with the GPL, which means that you must provide the source of the entire derived work under the terms of the GPL. If you’re just using GPL code together with proprietary code but not redistributing it, then you’re in the clear.
I am not a lawyer and this is not legal advice, just my understanding of the matter.